This update includes:
- support for printk message indexing.
- large extent counts to provide support for up to 2^47 data extents and 2^32
attribute extents, allowing us to scale beyond 4 billion data extents
to billions of xattrs per inode.
- conversion of various flags fields to be consistently declared as
unsigned bit fields.
- improvements to realtime extent accounting and converts them to per-cpu
counters to match all the other block and inode accounting.
- reworks core log formatting code to reduce iterations, have a shorter, cleaner
fast path and generally be easier to understand and maintain.
- improvements to rmap btree searches that reduce overhead by up
to 30% resulting in xfs_scrub runtime reductions of 15%.
- improvements to reflink that remove the size limitations in remapping operations
and greatly reduce the size of transaction reservations.
- reworks the minimum log size calculations to allow us to change transaction
reservations without changing the minimum supported log size.
- removal of quota warning support as it has never been used on Linux.
- intent whiteouts to allow us to cancel intents that are completed entirely
in memory rather than having use CPU and disk bandwidth formatting and writing
them into the journal when it is not necessary. This makes rmap, reflink and
extent freeing slightly more efficient, but provides massive improvements
for....
- Logged Attribute Replay feature support. This is a fundamental change to the
way we modify attributes, laying the foundation for future integration of
attribute modifications as part of other atomic transactional operations the
filesystem performs.
- Lots of cleanups and fixes for the logged attribute replay functionality.
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Merge tag 'xfs-5.19-for-linus' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs updates from Dave Chinner:
"This is a big update with lots of new code. The summary below them
all, so I'll just touch on teh higlights. The two main new features
are Large Extent Counts and Logged Attribute Replay - these are two
new foundational features that we are building more complex future
features on top of.
For upcoming functionality, we need to be able to store hundreds of
millions of xattrs per inode. The Large Extent Count feature removes
the limits that prevent this scale of xattr storage, and while we were
modifying the on disk extent count format we also increased the number
of data extents we support per inode from 2^32 to 2^47.
We also need to be able to modify xattrs as part of larger atomic
transactions rather than as standalone transactions. The Logged
Attribute Replay feature introduces the infrastructure that allows us
to use intents to record the attribute modifications in the journal
before we start them, hence allowing other atomic transactions to log
attribute modification intents and then defer the actual modification
to later. If we then crash, log recovery then guarantees that the
attribute is replayed in the context of the atomic transaction that
logged the intent.
A significant chunk of the commits in this merge are for the base
attribute replay functionality along with fixes, improvements and
cleanups related to this new functioanlity. Allison deserves a big
round of thanks for her ongoing work to get this functionality into
XFS.
There are also many other smaller changes and improvements, so overall
this is one of the bigger XFS merge requests in some time.
I will be following up next week with another smaller pull request -
we already have another round of fixes and improvements to the logged
attribute replay functionality just about ready to go. They'll soak
and test over the next week, and I'll send a pull request for them
near the end of the merge window.
Summary:
- support for printk message indexing.
- large extent counts to provide support for up to 2^47 data extents
and 2^32 attribute extents, allowing us to scale beyond 4 billion
data extents to billions of xattrs per inode.
- conversion of various flags fields to be consistently declared as
unsigned bit fields.
- improvements to realtime extent accounting and converts them to
per-cpu counters to match all the other block and inode accounting.
- reworks core log formatting code to reduce iterations, have a
shorter, cleaner fast path and generally be easier to understand
and maintain.
- improvements to rmap btree searches that reduce overhead by up to
30% resulting in xfs_scrub runtime reductions of 15%.
- improvements to reflink that remove the size limitations in
remapping operations and greatly reduce the size of transaction
reservations.
- reworks the minimum log size calculations to allow us to change
transaction reservations without changing the minimum supported log
size.
- removal of quota warning support as it has never been used on
Linux.
- intent whiteouts to allow us to cancel intents that are completed
entirely in memory rather than having use CPU and disk bandwidth
formatting and writing them into the journal when it is not
necessary. This makes rmap, reflink and extent freeing slightly
more efficient, but provides massive improvements for....
- Logged Attribute Replay feature support. This is a fundamental
change to the way we modify attributes, laying the foundation for
future integration of attribute modifications as part of other
atomic transactional operations the filesystem performs.
- Lots of cleanups and fixes for the logged attribute replay
functionality"
* tag 'xfs-5.19-for-linus' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (124 commits)
xfs: can't use kmem_zalloc() for attribute buffers
xfs: detect empty attr leaf blocks in xfs_attr3_leaf_verify
xfs: ATTR_REPLACE algorithm with LARP enabled needs rework
xfs: use XFS_DA_OP flags in deferred attr ops
xfs: remove xfs_attri_remove_iter
xfs: switch attr remove to xfs_attri_set_iter
xfs: introduce attr remove initial states into xfs_attr_set_iter
xfs: xfs_attr_set_iter() does not need to return EAGAIN
xfs: clean up final attr removal in xfs_attr_set_iter
xfs: remote xattr removal in xfs_attr_set_iter() is conditional
xfs: XFS_DAS_LEAF_REPLACE state only needed if !LARP
xfs: split remote attr setting out from replace path
xfs: consolidate leaf/node states in xfs_attr_set_iter
xfs: kill XFS_DAC_LEAF_ADDNAME_INIT
xfs: separate out initial attr_set states
xfs: don't set quota warning values
xfs: remove warning counters from struct xfs_dquot_res
xfs: remove quota warning limit from struct xfs_quota_limits
xfs: rework deferred attribute operation setup
xfs: make xattri_leaf_bp more useful
...
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Merge tag 'fsnotify_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:
"The biggest part of this is support for fsnotify inode marks that
don't pin inodes in memory but rather get evicted together with the
inode (they are useful if userspace needs to exclude receipt of events
from potentially large subtrees using fanotify ignore marks).
There is also a fix for more consistent handling of events sent to
parent and a fix of sparse(1) complaints"
* tag 'fsnotify_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: fix incorrect fmode_t casts
fsnotify: consistent behavior for parent not watching children
fsnotify: introduce mark type iterator
fanotify: enable "evictable" inode marks
fanotify: use fsnotify group lock helpers
fanotify: implement "evictable" inode marks
fanotify: factor out helper fanotify_mark_update_flags()
fanotify: create helper fanotify_mark_user_flags()
fsnotify: allow adding an inode mark without pinning inode
dnotify: use fsnotify group lock helpers
nfsd: use fsnotify group lock helpers
audit: use fsnotify group lock helpers
inotify: use fsnotify group lock helpers
fsnotify: create helpers for group mark_mutex lock
fsnotify: make allow_dups a property of the group
fsnotify: pass flags argument to fsnotify_alloc_group()
fsnotify: fix wrong lockdep annotations
inotify: move control flags from mask to mark flags
inotify: show inotify mask flags in proc fdinfo
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Merge tag 'fs_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull writeback and ext2 cleanups from Jan Kara:
"One small ext2 cleanup and one writeback spelling fix"
* tag 'fs_for_v5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
writeback: fix typo in comment
fs: ext2: Fix duplicate included linux/dax.h
Hi Linus,
Please, pull the following hardening changes that I've been collecting
in my tree during the last development cycle. All of them have been
baking in linux-next.
Replace open-coded instances with size_t saturating arithmetic helpers:
- virt: acrn: Prefer array_size and struct_size over open coded arithmetic (Len Baker)
- afs: Prefer struct_size over open coded arithmetic (Len Baker)
Thanks
--
Gustavo
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Merge tag 'size_t-saturating-helpers-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull misc hardening updates from Gustavo Silva:
"Replace a few open-coded instances with size_t saturating arithmetic
helpers"
* tag 'size_t-saturating-helpers-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
virt: acrn: Prefer array_size and struct_size over open coded arithmetic
afs: Prefer struct_size over open coded arithmetic
Core
----
- Support TCPv6 segmentation offload with super-segments larger than
64k bytes using the IPv6 Jumbogram extension header (AKA BIG TCP).
- Generalize skb freeing deferral to per-cpu lists, instead of
per-socket lists.
- Add a netdev statistic for packets dropped due to L2 address
mismatch (rx_otherhost_dropped).
- Continue work annotating skb drop reasons.
- Accept alternative netdev names (ALT_IFNAME) in more netlink
requests.
- Add VLAN support for AF_PACKET SOCK_RAW GSO.
- Allow receiving skb mark from the socket as a cmsg.
- Enable memcg accounting for veth queues, sysctl tables and IPv6.
BPF
---
- Add libbpf support for User Statically-Defined Tracing (USDTs).
- Speed up symbol resolution for kprobes multi-link attachments.
- Support storing typed pointers to referenced and unreferenced
objects in BPF maps.
- Add support for BPF link iterator.
- Introduce access to remote CPU map elements in BPF per-cpu map.
- Allow middle-of-the-road settings for the
kernel.unprivileged_bpf_disabled sysctl.
- Implement basic types of dynamic pointers e.g. to allow for
dynamically sized ringbuf reservations without extra memory copies.
Protocols
---------
- Retire port only listening_hash table, add a second bind table
hashed by port and address. Avoid linear list walk when binding
to very popular ports (e.g. 443).
- Add bridge FDB bulk flush filtering support allowing user space
to remove all FDB entries matching a condition.
- Introduce accept_unsolicited_na sysctl for IPv6 to implement
router-side changes for RFC9131.
- Support for MPTCP path manager in user space.
- Add MPTCP support for fallback to regular TCP for connections
that have never connected additional subflows or transmitted
out-of-sequence data (partial support for RFC8684 fallback).
- Avoid races in MPTCP-level window tracking, stabilize and improve
throughput.
- Support lockless operation of GRE tunnels with seq numbers enabled.
- WiFi support for host based BSS color collision detection.
- Add support for SO_TXTIME/SCM_TXTIME on CAN sockets.
- Support transmission w/o flow control in CAN ISOTP (ISO 15765-2).
- Support zero-copy Tx with TLS 1.2 crypto offload (sendfile).
- Allow matching on the number of VLAN tags via tc-flower.
- Add tracepoint for tcp_set_ca_state().
Driver API
----------
- Improve error reporting from classifier and action offload.
- Add support for listing line cards in switches (devlink).
- Add helpers for reporting page pool statistics with ethtool -S.
- Add support for reading clock cycles when using PTP virtual clocks,
instead of having the driver convert to time before reporting.
This makes it possible to report time from different vclocks.
- Support configuring low-latency Tx descriptor push via ethtool.
- Separate Clause 22 and Clause 45 MDIO accesses more explicitly.
New hardware / drivers
----------------------
- Ethernet:
- Marvell's Octeon NIC PCI Endpoint support (octeon_ep)
- Sunplus SP7021 SoC (sp7021_emac)
- Add support for Renesas RZ/V2M (in ravb)
- Add support for MediaTek mt7986 switches (in mtk_eth_soc)
- Ethernet PHYs:
- ADIN1100 industrial PHYs (w/ 10BASE-T1L and SQI reporting)
- TI DP83TD510 PHY
- Microchip LAN8742/LAN88xx PHYs
- WiFi:
- Driver for pureLiFi X, XL, XC devices (plfxlc)
- Driver for Silicon Labs devices (wfx)
- Support for WCN6750 (in ath11k)
- Support Realtek 8852ce devices (in rtw89)
- Mobile:
- MediaTek T700 modems (Intel 5G 5000 M.2 cards)
- CAN:
- ctucanfd: add support for CTU CAN FD open-source IP core
from Czech Technical University in Prague
Drivers
-------
- Delete a number of old drivers still using virt_to_bus().
- Ethernet NICs:
- intel: support TSO on tunnels MPLS
- broadcom: support multi-buffer XDP
- nfp: support VF rate limiting
- sfc: use hardware tx timestamps for more than PTP
- mlx5: multi-port eswitch support
- hyper-v: add support for XDP_REDIRECT
- atlantic: XDP support (including multi-buffer)
- macb: improve real-time perf by deferring Tx processing to NAPI
- High-speed Ethernet switches:
- mlxsw: implement basic line card information querying
- prestera: add support for traffic policing on ingress and egress
- Embedded Ethernet switches:
- lan966x: add support for packet DMA (FDMA)
- lan966x: add support for PTP programmable pins
- ti: cpsw_new: enable bc/mc storm prevention
- Qualcomm 802.11ax WiFi (ath11k):
- Wake-on-WLAN support for QCA6390 and WCN6855
- device recovery (firmware restart) support
- support setting Specific Absorption Rate (SAR) for WCN6855
- read country code from SMBIOS for WCN6855/QCA6390
- enable keep-alive during WoWLAN suspend
- implement remain-on-channel support
- MediaTek WiFi (mt76):
- support Wireless Ethernet Dispatch offloading packet movement
between the Ethernet switch and WiFi interfaces
- non-standard VHT MCS10-11 support
- mt7921 AP mode support
- mt7921 IPv6 NS offload support
- Ethernet PHYs:
- micrel: ksz9031/ksz9131: cabletest support
- lan87xx: SQI support for T1 PHYs
- lan937x: add interrupt support for link detection
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core
----
- Support TCPv6 segmentation offload with super-segments larger than
64k bytes using the IPv6 Jumbogram extension header (AKA BIG TCP).
- Generalize skb freeing deferral to per-cpu lists, instead of
per-socket lists.
- Add a netdev statistic for packets dropped due to L2 address
mismatch (rx_otherhost_dropped).
- Continue work annotating skb drop reasons.
- Accept alternative netdev names (ALT_IFNAME) in more netlink
requests.
- Add VLAN support for AF_PACKET SOCK_RAW GSO.
- Allow receiving skb mark from the socket as a cmsg.
- Enable memcg accounting for veth queues, sysctl tables and IPv6.
BPF
---
- Add libbpf support for User Statically-Defined Tracing (USDTs).
- Speed up symbol resolution for kprobes multi-link attachments.
- Support storing typed pointers to referenced and unreferenced
objects in BPF maps.
- Add support for BPF link iterator.
- Introduce access to remote CPU map elements in BPF per-cpu map.
- Allow middle-of-the-road settings for the
kernel.unprivileged_bpf_disabled sysctl.
- Implement basic types of dynamic pointers e.g. to allow for
dynamically sized ringbuf reservations without extra memory copies.
Protocols
---------
- Retire port only listening_hash table, add a second bind table
hashed by port and address. Avoid linear list walk when binding to
very popular ports (e.g. 443).
- Add bridge FDB bulk flush filtering support allowing user space to
remove all FDB entries matching a condition.
- Introduce accept_unsolicited_na sysctl for IPv6 to implement
router-side changes for RFC9131.
- Support for MPTCP path manager in user space.
- Add MPTCP support for fallback to regular TCP for connections that
have never connected additional subflows or transmitted
out-of-sequence data (partial support for RFC8684 fallback).
- Avoid races in MPTCP-level window tracking, stabilize and improve
throughput.
- Support lockless operation of GRE tunnels with seq numbers enabled.
- WiFi support for host based BSS color collision detection.
- Add support for SO_TXTIME/SCM_TXTIME on CAN sockets.
- Support transmission w/o flow control in CAN ISOTP (ISO 15765-2).
- Support zero-copy Tx with TLS 1.2 crypto offload (sendfile).
- Allow matching on the number of VLAN tags via tc-flower.
- Add tracepoint for tcp_set_ca_state().
Driver API
----------
- Improve error reporting from classifier and action offload.
- Add support for listing line cards in switches (devlink).
- Add helpers for reporting page pool statistics with ethtool -S.
- Add support for reading clock cycles when using PTP virtual clocks,
instead of having the driver convert to time before reporting. This
makes it possible to report time from different vclocks.
- Support configuring low-latency Tx descriptor push via ethtool.
- Separate Clause 22 and Clause 45 MDIO accesses more explicitly.
New hardware / drivers
----------------------
- Ethernet:
- Marvell's Octeon NIC PCI Endpoint support (octeon_ep)
- Sunplus SP7021 SoC (sp7021_emac)
- Add support for Renesas RZ/V2M (in ravb)
- Add support for MediaTek mt7986 switches (in mtk_eth_soc)
- Ethernet PHYs:
- ADIN1100 industrial PHYs (w/ 10BASE-T1L and SQI reporting)
- TI DP83TD510 PHY
- Microchip LAN8742/LAN88xx PHYs
- WiFi:
- Driver for pureLiFi X, XL, XC devices (plfxlc)
- Driver for Silicon Labs devices (wfx)
- Support for WCN6750 (in ath11k)
- Support Realtek 8852ce devices (in rtw89)
- Mobile:
- MediaTek T700 modems (Intel 5G 5000 M.2 cards)
- CAN:
- ctucanfd: add support for CTU CAN FD open-source IP core from
Czech Technical University in Prague
Drivers
-------
- Delete a number of old drivers still using virt_to_bus().
- Ethernet NICs:
- intel: support TSO on tunnels MPLS
- broadcom: support multi-buffer XDP
- nfp: support VF rate limiting
- sfc: use hardware tx timestamps for more than PTP
- mlx5: multi-port eswitch support
- hyper-v: add support for XDP_REDIRECT
- atlantic: XDP support (including multi-buffer)
- macb: improve real-time perf by deferring Tx processing to NAPI
- High-speed Ethernet switches:
- mlxsw: implement basic line card information querying
- prestera: add support for traffic policing on ingress and egress
- Embedded Ethernet switches:
- lan966x: add support for packet DMA (FDMA)
- lan966x: add support for PTP programmable pins
- ti: cpsw_new: enable bc/mc storm prevention
- Qualcomm 802.11ax WiFi (ath11k):
- Wake-on-WLAN support for QCA6390 and WCN6855
- device recovery (firmware restart) support
- support setting Specific Absorption Rate (SAR) for WCN6855
- read country code from SMBIOS for WCN6855/QCA6390
- enable keep-alive during WoWLAN suspend
- implement remain-on-channel support
- MediaTek WiFi (mt76):
- support Wireless Ethernet Dispatch offloading packet movement
between the Ethernet switch and WiFi interfaces
- non-standard VHT MCS10-11 support
- mt7921 AP mode support
- mt7921 IPv6 NS offload support
- Ethernet PHYs:
- micrel: ksz9031/ksz9131: cabletest support
- lan87xx: SQI support for T1 PHYs
- lan937x: add interrupt support for link detection"
* tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1809 commits)
ptp: ocp: Add firmware header checks
ptp: ocp: fix PPS source selector debugfs reporting
ptp: ocp: add .init function for sma_op vector
ptp: ocp: vectorize the sma accessor functions
ptp: ocp: constify selectors
ptp: ocp: parameterize input/output sma selectors
ptp: ocp: revise firmware display
ptp: ocp: add Celestica timecard PCI ids
ptp: ocp: Remove #ifdefs around PCI IDs
ptp: ocp: 32-bit fixups for pci start address
Revert "net/smc: fix listen processing for SMC-Rv2"
ath6kl: Use cc-disable-warning to disable -Wdangling-pointer
selftests/bpf: Dynptr tests
bpf: Add dynptr data slices
bpf: Add bpf_dynptr_read and bpf_dynptr_write
bpf: Dynptr support for ring buffers
bpf: Add bpf_dynptr_from_mem for local dynptrs
bpf: Add verifier support for dynptrs
bpf: Suppress 'passing zero to PTR_ERR' warning
bpf: Introduce bpf_arch_text_invalidate for bpf_prog_pack
...
- Appoint myself page cache maintainer
- Fix how scsicam uses the page cache
- Use the memalloc_nofs_save() API to replace AOP_FLAG_NOFS
- Remove the AOP flags entirely
- Remove pagecache_write_begin() and pagecache_write_end()
- Documentation updates
- Convert several address_space operations to use folios:
- is_dirty_writeback
- readpage becomes read_folio
- releasepage becomes release_folio
- freepage becomes free_folio
- Change filler_t to require a struct file pointer be the first argument
like ->read_folio
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Merge tag 'folio-5.19' of git://git.infradead.org/users/willy/pagecache
Pull page cache updates from Matthew Wilcox:
- Appoint myself page cache maintainer
- Fix how scsicam uses the page cache
- Use the memalloc_nofs_save() API to replace AOP_FLAG_NOFS
- Remove the AOP flags entirely
- Remove pagecache_write_begin() and pagecache_write_end()
- Documentation updates
- Convert several address_space operations to use folios:
- is_dirty_writeback
- readpage becomes read_folio
- releasepage becomes release_folio
- freepage becomes free_folio
- Change filler_t to require a struct file pointer be the first
argument like ->read_folio
* tag 'folio-5.19' of git://git.infradead.org/users/willy/pagecache: (107 commits)
nilfs2: Fix some kernel-doc comments
Appoint myself page cache maintainer
fs: Remove aops->freepage
secretmem: Convert to free_folio
nfs: Convert to free_folio
orangefs: Convert to free_folio
fs: Add free_folio address space operation
fs: Convert drop_buffers() to use a folio
fs: Change try_to_free_buffers() to take a folio
jbd2: Convert release_buffer_page() to use a folio
jbd2: Convert jbd2_journal_try_to_free_buffers to take a folio
reiserfs: Convert release_buffer_page() to use a folio
fs: Remove last vestiges of releasepage
ubifs: Convert to release_folio
reiserfs: Convert to release_folio
orangefs: Convert to release_folio
ocfs2: Convert to release_folio
nilfs2: Remove comment about releasepage
nfs: Convert to release_folio
jfs: Convert to release_folio
...
- Fix a couple of accounting errors in the buffered io code.
- Discontinue the practice of marking folios !uptodate and invalidating
them when writeback fails. This fixes some UAF bugs when multipage
folios are enabled, and brings the behavior of XFS/gfs/zonefs into
alignment with the behavior of all the other Linux filesystems.
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Merge tag 'iomap-5.19-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull iomap updates from Darrick Wong:
"There's a couple of corrections sent in by Andreas for some accounting
errors.
The biggest change this time around is that writeback errors longer
clear pageuptodate nor does XFS invalidate the page cache anymore.
This brings XFS (and gfs2/zonefs) behavior in line with every other
Linux filesystem driver, and fixes some UAF bugs that only cropped up
after willy turned on multipage folios for XFS in 5.18-rc1.
Regrettably, it took all the way to the end of the 5.18 cycle to find
the source of these bugs and reach a consensus that XFS' writeback
failure behavior from 20 years ago is no longer necessary.
Summary:
- Fix a couple of accounting errors in the buffered io code.
- Discontinue the practice of marking folios !uptodate and
invalidating them when writeback fails.
This fixes some UAF bugs when multipage folios are enabled, and
brings the behavior of XFS/gfs/zonefs into alignment with the
behavior of all the other Linux filesystems"
* tag 'iomap-5.19-merge-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
iomap: don't invalidate folios after writeback errors
iomap: iomap_write_end cleanup
iomap: iomap_write_failed fix
This set includes several large patches to improve endian handling and
remove sparse warnings. The code previously used in/out, in-place
endianness conversion functions. Other code cleanup includes the list
iterator changes. Finally, a long standing bug was found and fixed,
caused by missed decrement on an lock struct ref count.
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Merge tag 'dlm-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm updates from David Teigland:
"This includes several large patches to improve endian handling and
remove sparse warnings. The code previously used in/out, in-place
endianness conversion functions.
Other code cleanup includes the list iterator changes.
Finally, a long standing bug was found and fixed, caused by missed
decrement on an lock struct ref count"
* tag 'dlm-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: (28 commits)
dlm: use kref_put_lock in __put_lkb
dlm: use kref_put_lock in put_rsb
dlm: remove unnecessary error assign
dlm: fix missing lkb refcount handling
fs: dlm: cast resource pointer to uintptr_t
dlm: replace usage of found with dedicated list iterator variable
dlm: remove usage of list iterator for list_add() after the loop body
dlm: fix pending remove if msg allocation fails
dlm: fix wake_up() calls for pending remove
dlm: check required context while close
dlm: cleanup lock handling in dlm_master_lookup
dlm: remove found label in dlm_master_lookup
dlm: remove __user conversion warnings
dlm: move conversion to compile time
dlm: use __le types for dlm messages
dlm: use __le types for rcom messages
dlm: use __le types for dlm header
dlm: use __le types for options header
dlm: add __CHECKER__ for false positives
dlm: move global to static inits
...
crypto related fucntions from fs/ext4/super.c into a new
fs/ext4/crypto.c, and fix a number of bugs found by fuzzers and error
injection tools.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"Various bug fixes and cleanups for ext4.
In particular, move the crypto related fucntions from fs/ext4/super.c
into a new fs/ext4/crypto.c, and fix a number of bugs found by fuzzers
and error injection tools"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (25 commits)
ext4: only allow test_dummy_encryption when supported
ext4: fix bug_on in __es_tree_search
ext4: avoid cycles in directory h-tree
ext4: verify dir block before splitting it
ext4: filter out EXT4_FC_REPLAY from on-disk superblock field s_state
ext4: fix bug_on in ext4_writepages
ext4: refactor and move ext4_ioctl_get_encryption_pwsalt()
ext4: cleanup function defs from ext4.h into crypto.c
ext4: move ext4 crypto code to its own file crypto.c
ext4: fix memory leak in parse_apply_sb_mount_options()
ext4: reject the 'commit' option on ext2 filesystems
ext4: remove duplicated #include of dax.h in inode.c
ext4: fix race condition between ext4_write and ext4_convert_inline_data
ext4: convert symlink external data block mapping to bdev
ext4: add nowait mode for ext4_getblk()
ext4: fix journal_ioprio mount option handling
ext4: mark group as trimmed only if it was fully scanned
ext4: fix use-after-free in ext4_rename_dir_prepare
ext4: add unmount filesystem message
ext4: remove unnecessary conditionals
...
- Clean up the allocation of glocks that have an address space attached.
- Quota locking fix and quota iomap conversion.
- Fix the FITRIM error reporting.
- Some list iterator cleanups.
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Merge tag 'gfs2-v5.18-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher:
- Clean up the allocation of glocks that have an address space attached
- Quota locking fix and quota iomap conversion
- Fix the FITRIM error reporting
- Some list iterator cleanups
* tag 'gfs2-v5.18-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Convert function bh_get to use iomap
gfs2: use i_lock spin_lock for inode qadata
gfs2: Return more useful errors from gfs2_rgrp_send_discards()
gfs2: Use container_of() for gfs2_glock(aspace)
gfs2: Explain some direct I/O oddities
gfs2: replace 'found' with dedicated list iterator variable
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Merge tag 'for-5.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"Features:
- subpage:
- support for PAGE_SIZE > 4K (previously only 64K)
- make it work with raid56
- repair super block num_devices automatically if it does not match
the number of device items
- defrag can convert inline extents to regular extents, up to now
inline files were skipped but the setting of mount option
max_inline could affect the decision logic
- zoned:
- minimal accepted zone size is explicitly set to 4MiB
- make zone reclaim less aggressive and don't reclaim if there are
enough free zones
- add per-profile sysfs tunable of the reclaim threshold
- allow automatic block group reclaim for non-zoned filesystems, with
sysfs tunables
- tree-checker: new check, compare extent buffer owner against owner
rootid
Performance:
- avoid blocking on space reservation when doing nowait direct io
writes (+7% throughput for reads and writes)
- NOCOW write throughput improvement due to refined locking (+3%)
- send: reduce pressure to page cache by dropping extent pages right
after they're processed
Core:
- convert all radix trees to xarray
- add iterators for b-tree node items
- support printk message index
- user bulk page allocation for extent buffers
- switch to bio_alloc API, use on-stack bios where convenient, other
bio cleanups
- use rw lock for block groups to favor concurrent reads
- simplify workques, don't allocate high priority threads for all
normal queues as we need only one
- refactor scrub, process chunks based on their constraints and
similarity
- allocate direct io structures on stack and pass around only
pointers, avoids allocation and reduces potential error handling
Fixes:
- fix count of reserved transaction items for various inode
operations
- fix deadlock between concurrent dio writes when low on free data
space
- fix a few cases when zones need to be finished
VFS, iomap:
- add helper to check if sb write has started (usable for assertions)
- new helper iomap_dio_alloc_bio, export iomap_dio_bio_end_io"
* tag 'for-5.19-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (173 commits)
btrfs: zoned: introduce a minimal zone size 4M and reject mount
btrfs: allow defrag to convert inline extents to regular extents
btrfs: add "0x" prefix for unsupported optional features
btrfs: do not account twice for inode ref when reserving metadata units
btrfs: zoned: fix comparison of alloc_offset vs meta_write_pointer
btrfs: send: avoid trashing the page cache
btrfs: send: keep the current inode open while processing it
btrfs: allocate the btrfs_dio_private as part of the iomap dio bio
btrfs: move struct btrfs_dio_private to inode.c
btrfs: remove the disk_bytenr in struct btrfs_dio_private
btrfs: allocate dio_data on stack
iomap: add per-iomap_iter private data
iomap: allow the file system to provide a bio_set for direct I/O
btrfs: add a btrfs_dio_rw wrapper
btrfs: zoned: zone finish unused block group
btrfs: zoned: properly finish block group on metadata write
btrfs: zoned: finish block group when there are no more allocatable bytes left
btrfs: zoned: consolidate zone finish functions
btrfs: zoned: introduce btrfs_zoned_bg_is_full
btrfs: improve error reporting in lookup_inline_extent_backref
...
A single patch to fix zonefs_init_file_inode() return value.
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Merge tag 'zonefs-5.19-rc1-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
Pull zonefs fix from Damien Le Moal:
"A single patch to fix zonefs_init_file_inode() return value"
* tag 'zonefs-5.19-rc1-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
zonefs: Fix zonefs_init_file_inode() return value
- Add erofs on-demand load support over fscache;
- Support NFS export for erofs;
- Support idmapped mounts for erofs;
- Don't prompt for risk any more when using big pcluster;
- Fix buffer copy overflow of ztailpacking feature;
- Several minor cleanups.
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Merge tag 'erofs-for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs (and fscache) updates from Gao Xiang:
"After working on it on the mailing list for more than half a year, we
finally form 'erofs over fscache' feature into shape. Hopefully it
could bring more possibility to the communities.
The story mainly started from a new project what we called "RAFS v6" [1]
for Nydus image service almost a year ago, which enhances EROFS to be
a new form of one bootstrap (which includes metadata representing the
whole fs tree) + several data-deduplicated content addressable blobs
(actually treated as multiple devices). Each blob can represent one
container image layer but not quite exactly since all new data can be
fully existed in the previous blobs so no need to introduce another
new blob.
It is actually not a new idea (at least on my side it's much like a
simpilied casync [2] for now) and has many benefits over per-file
blobs or some other exist ways since typically each RAFS v6 image only
has dozens of device blobs instead of thousands of per-file blobs.
It's easy to be signed with user keys as a golden image, transfered
untouchedly with minimal overhead over the network, kept in some type
of storage conveniently, and run with (optional) runtime verification
but without involving too many irrelevant features crossing the system
beyond EROFS itself. At least it's our final goal and we're keeping
working on it. There was also a good summary of this approach from the
casync author [3].
Regardless further optimizations, this work is almost done in the
previous Linux release cycles. In this round, we'd like to introduce
on-demand load for EROFS with the fscache/cachefiles infrastructure,
considering the following advantages:
- Introduce new file-based backend to EROFS. Although each image only
contains dozens of blobs but in densely-deployed runC host for
example, there could still be massive blobs on a machine, which is
messy if each blob is treated as a device. In contrast, fscache and
cachefiles are really great interfaces for us to make them work.
- Introduce on-demand load to fscache and EROFS. Previously, fscache
is mainly used to caching network-likewise filesystems, now it can
support on-demand downloading for local fses too with the exact
localfs on-disk format. It has many advantages which we're been
described in the latest patchset cover letter [4]. In addition to
that, most importantly, the cached data is still stored in the
original local fs on-disk format so that it's still the one signed
with private keys but only could be partially available. Users can
fully trust it during running. Later, users can also back up
cachefiles easily to another machine.
- More reliable on-demand approach in principle. After data is all
available locally, user daemon can be no longer online in some use
cases, which helps daemon crash recovery (filesystems can still in
service) and hot-upgrade (user daemon can be upgraded more
frequently due to new features or protocols introduced.)
- Other format can also be converted to EROFS filesystem format over
the internet on the fly with the new on-demand load feature and
mounted. That is entirely possible with on-demand load feature as
long as such archive format metadata can be fetched in advance like
stargz.
In addition, although currently our target user is Nydus image service [5],
but laterly, it can be used for other use cases like on-demand system
booting, etc. As for the fscache on-demand load feature itself,
strictly it can be used for other local fses too. Laterly we could
promote most code to the iomap infrastructure and also enhance it in
the read-write way if other local fses are interested.
Thanks David Howells for taking so much time and patience on this
these months, many thanks with great respect here again! Thanks Jeffle
for working on this feature and Xin Yin from Bytedance for
asynchronous I/O implementation as well as Zichen Tian, Jia Zhu, and
Yan Song for testing, much appeciated. We're also exploring more
possibly over fscache cache management over FSDAX for secure
containers and working on more improvements and useful features for
fscache, cachefiles, and on-demand load.
In addition to "erofs over fscache", NFS export and idmapped mount are
also completed in this cycle for container use cases as well.
Summary:
- Add erofs on-demand load support over fscache
- Support NFS export for erofs
- Support idmapped mounts for erofs
- Don't prompt for risk any more when using big pcluster
- Fix buffer copy overflow of ztailpacking feature
- Several minor cleanups"
[1] https://lore.kernel.org/r/20210730194625.93856-1-hsiangkao@linux.alibaba.com
[2] https://github.com/systemd/casync
[3] http://0pointer.net/blog/casync-a-tool-for-distributing-file-system-images.html
[4] https://lore.kernel.org/r/20220509074028.74954-1-jefflexu@linux.alibaba.com
[5] https://github.com/dragonflyoss/image-service
* tag 'erofs-for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: (29 commits)
erofs: scan devices from device table
erofs: change to use asynchronous io for fscache readpage/readahead
erofs: add 'fsid' mount option
erofs: implement fscache-based data readahead
erofs: implement fscache-based data read for inline layout
erofs: implement fscache-based data read for non-inline layout
erofs: implement fscache-based metadata read
erofs: register fscache context for extra data blobs
erofs: register fscache context for primary data blob
erofs: add erofs_fscache_read_folios() helper
erofs: add anonymous inode caching metadata for data blobs
erofs: add fscache context helper functions
erofs: register fscache volume
erofs: add fscache mode check helper
erofs: make erofs_map_blocks() generally available
cachefiles: document on-demand read mode
cachefiles: add tracepoints for on-demand read mode
cachefiles: enable on-demand read mode
cachefiles: implement on-demand read
cachefiles: notify the user daemon when withdrawing cookie
...
- fix referencing wrong parent directory information during rename.
- introduce a sys_tz mount option to use system timezone.
- improve performance while zeroing a cluster with dirsync mount option.
- fix slab-out-bounds in exat_clear_bitmap() reported from syzbot.
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Merge tag 'exfat-for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
Pull exfat updates from Namjae Jeon:
- fix referencing wrong parent directory information during rename
- introduce a sys_tz mount option to use system timezone
- improve performance while zeroing a cluster with dirsync mount option
- fix slab-out-bounds in exat_clear_bitmap() reported from syzbot
* tag 'exfat-for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
exfat: check if cluster num is valid
exfat: reduce block requests when zeroing a cluster
block: add sync_blockdev_range()
exfat: introduce mount option 'sys_tz'
exfat: fix referencing wrong parent directory information after renaming
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Merge tag 'fs.idmapped.v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull fs idmapping updates from Christian Brauner:
"This contains two minor updates:
- An update to the idmapping documentation by Rodrigo making it
easier to understand that we first introduce several use-cases that
fail without idmapped mounts simply to explain how they can be
handled with idmapped mounts.
- When changing a mount's idmapping we now hold writers to make it
more robust.
This is similar to turning a mount ro with the difference that in
contrast to turning a mount ro changing the idmapping can only ever
be done once while a mount can transition between ro and rw as much
as it wants.
The vfs layer itself takes care to retrieve the idmapping of a
mount once ensuring that the idmapping used for vfs permission
checking is identical to the idmapping passed down to the
filesystem. All filesystems with FS_ALLOW_IDMAP raised take the
same precautions as the vfs in code-paths that are outside of
direct control of the vfs such as ioctl()s.
However, holding writers makes this more robust and predictable for
both the kernel and userspace.
This is a minor user-visible change. But it is extremely unlikely
to matter. The caller must've created a detached mount via
OPEN_TREE_CLONE and then handed that O_PATH fd to another process
or thread which then must've gotten a writable fd for that mount
and started creating files in there while the caller is still
changing mount properties. While not impossible it will be an
extremely rare corner-case and should in general be considered a
bug in the application. Consider making a mount MOUNT_ATTR_NOEXEC
or MOUNT_ATTR_NODEV while allowing someone else to perform lookups
or exec'ing in parallel by handing them a copy of the
OPEN_TREE_CLONE fd or another fd beneath that mount.
I've pinged all major users of idmapped mounts pointing out this
change and none of them have active writers on a mount while still
changing mount properties. It would've been strange if they did.
The rest and majority of the work will be coming through the overlayfs
tree this cycle. In addition to overlayfs this cycle should also see
support for idmapped mounts on erofs as I've acked a patch to this
effect a little while ago"
* tag 'fs.idmapped.v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
fs: hold writers when changing mount's idmapping
docs: Add small intro to idmap examples
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Merge tag 'integrity-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull IMA updates from Mimi Zohar:
"New is IMA support for including fs-verity file digests and signatures
in the IMA measurement list as well as verifying the fs-verity file
digest based signatures, both based on policy.
In addition, are two bug fixes:
- avoid reading UEFI variables, which cause a page fault, on Apple
Macs with T2 chips.
- remove the original "ima" template Kconfig option to address a boot
command line ordering issue.
The rest is a mixture of code/documentation cleanup"
* tag 'integrity-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
integrity: Fix sparse warnings in keyring_handler
evm: Clean up some variables
evm: Return INTEGRITY_PASS for enum integrity_status value '0'
efi: Do not import certificates from UEFI Secure Boot for T2 Macs
fsverity: update the documentation
ima: support fs-verity file digest based version 3 signatures
ima: permit fsverity's file digests in the IMA measurement list
ima: define a new template field named 'd-ngv2' and templates
fs-verity: define a function to return the integrity protected file digest
ima: use IMA default hash algorithm for integrity violations
ima: fix 'd-ng' comments and documentation
ima: remove the IMA_TEMPLATE Kconfig option
ima: remove redundant initialization of pointer 'file'.
Make the test_dummy_encryption mount option require that the encrypt
feature flag be already enabled on the filesystem, rather than
automatically enabling it. Practically, this means that "-O encrypt"
will need to be included in MKFS_OPTIONS when running xfstests with the
test_dummy_encryption mount option. (ext4/053 also needs an update.)
Moreover, as long as the preconditions for test_dummy_encryption are
being tightened anyway, take the opportunity to start rejecting it when
!CONFIG_FS_ENCRYPTION rather than ignoring it.
The motivation for requiring the encrypt feature flag is that:
- Having the filesystem auto-enable feature flags is problematic, as it
bypasses the usual sanity checks. The specific issue which came up
recently is that in kernel versions where ext4 supports casefold but
not encrypt+casefold (v5.1 through v5.10), the kernel will happily add
the encrypt flag to a filesystem that has the casefold flag, making it
unmountable -- but only for subsequent mounts, not the initial one.
This confused the casefold support detection in xfstests, causing
generic/556 to fail rather than be skipped.
- The xfstests-bld test runners (kvm-xfstests et al.) already use the
required mkfs flag, so they will not be affected by this change. Only
users of test_dummy_encryption alone will be affected. But, this
option has always been for testing only, so it should be fine to
require that the few users of this option update their test scripts.
- f2fs already requires it (for its equivalent feature flag).
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Link: https://lore.kernel.org/r/20220519204437.61645-1-ebiggers@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Hulk Robot reported a BUG_ON:
==================================================================
kernel BUG at fs/ext4/extents_status.c:199!
[...]
RIP: 0010:ext4_es_end fs/ext4/extents_status.c:199 [inline]
RIP: 0010:__es_tree_search+0x1e0/0x260 fs/ext4/extents_status.c:217
[...]
Call Trace:
ext4_es_cache_extent+0x109/0x340 fs/ext4/extents_status.c:766
ext4_cache_extents+0x239/0x2e0 fs/ext4/extents.c:561
ext4_find_extent+0x6b7/0xa20 fs/ext4/extents.c:964
ext4_ext_map_blocks+0x16b/0x4b70 fs/ext4/extents.c:4384
ext4_map_blocks+0xe26/0x19f0 fs/ext4/inode.c:567
ext4_getblk+0x320/0x4c0 fs/ext4/inode.c:980
ext4_bread+0x2d/0x170 fs/ext4/inode.c:1031
ext4_quota_read+0x248/0x320 fs/ext4/super.c:6257
v2_read_header+0x78/0x110 fs/quota/quota_v2.c:63
v2_check_quota_file+0x76/0x230 fs/quota/quota_v2.c:82
vfs_load_quota_inode+0x5d1/0x1530 fs/quota/dquot.c:2368
dquot_enable+0x28a/0x330 fs/quota/dquot.c:2490
ext4_quota_enable fs/ext4/super.c:6137 [inline]
ext4_enable_quotas+0x5d7/0x960 fs/ext4/super.c:6163
ext4_fill_super+0xa7c9/0xdc00 fs/ext4/super.c:4754
mount_bdev+0x2e9/0x3b0 fs/super.c:1158
mount_fs+0x4b/0x1e4 fs/super.c:1261
[...]
==================================================================
Above issue may happen as follows:
-------------------------------------
ext4_fill_super
ext4_enable_quotas
ext4_quota_enable
ext4_iget
__ext4_iget
ext4_ext_check_inode
ext4_ext_check
__ext4_ext_check
ext4_valid_extent_entries
Check for overlapping extents does't take effect
dquot_enable
vfs_load_quota_inode
v2_check_quota_file
v2_read_header
ext4_quota_read
ext4_bread
ext4_getblk
ext4_map_blocks
ext4_ext_map_blocks
ext4_find_extent
ext4_cache_extents
ext4_es_cache_extent
ext4_es_cache_extent
__es_tree_search
ext4_es_end
BUG_ON(es->es_lblk + es->es_len < es->es_lblk)
The error ext4 extents is as follows:
0af3 0300 0400 0000 00000000 extent_header
00000000 0100 0000 12000000 extent1
00000000 0100 0000 18000000 extent2
02000000 0400 0000 14000000 extent3
In the ext4_valid_extent_entries function,
if prev is 0, no error is returned even if lblock<=prev.
This was intended to skip the check on the first extent, but
in the error image above, prev=0+1-1=0 when checking the second extent,
so even though lblock<=prev, the function does not return an error.
As a result, bug_ON occurs in __es_tree_search and the system panics.
To solve this problem, we only need to check that:
1. The lblock of the first extent is not less than 0.
2. The lblock of the next extent is not less than
the next block of the previous extent.
The same applies to extent_idx.
Cc: stable@kernel.org
Fixes: 5946d08937 ("ext4: check for overlapping extents in ext4_valid_extent_entries()")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220518120816.1541863-1-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
A maliciously corrupted filesystem can contain cycles in the h-tree
stored inside a directory. That can easily lead to the kernel corrupting
tree nodes that were already verified under its hands while doing a node
split and consequently accessing unallocated memory. Fix the problem by
verifying traversed block numbers are unique.
Cc: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220518093332.13986-2-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
The EXT4_FC_REPLAY bit in sbi->s_mount_state is used to indicate that
we are in the middle of replay the fast commit journal. This was
actually a mistake, since the sbi->s_mount_info is initialized from
es->s_state. Arguably s_mount_state is misleadingly named, but the
name is historical --- s_mount_state and s_state dates back to ext2.
What should have been used is the ext4_{set,clear,test}_mount_flag()
inline functions, which sets EXT4_MF_* bits in sbi->s_mount_flags.
The problem with using EXT4_FC_REPLAY is that a maliciously corrupted
superblock could result in EXT4_FC_REPLAY getting set in
s_mount_state. This bypasses some sanity checks, and this can trigger
a BUG() in ext4_es_cache_extent(). As a easy-to-backport-fix, filter
out the EXT4_FC_REPLAY bit for now. We should eventually transition
away from EXT4_FC_REPLAY to something like EXT4_MF_REPLAY.
Cc: stable@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20220420192312.1655305-1-phind.uet@gmail.com
Link: https://lore.kernel.org/r/20220517174028.942119-1-tytso@mit.edu
Reported-by: syzbot+c7358a3cd05ee786eb31@syzkaller.appspotmail.com
Before this patch, function bh_get used block_map to figure out the
block it needed to read in from the quota_change file. This patch
changes it to use iomap directly to make it more efficient.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Before this patch, functions gfs2_qa_get and _put used the i_rw_mutex to
prevent simultaneous access to its i_qadata. But i_rw_mutex is now used
for many other things, including iomap_begin and end, which causes a
conflict according to lockdep. We cannot just remove the lock since
simultaneous opens (gfs2_open -> gfs2_open_common -> gfs2_qa_get) can
then stomp on each others values for i_qadata.
This patch solves the conflict by using the i_lock spin_lock in the inode
to prevent simultaneous access.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
The bug that 27ca8273f ("gfs2: Make sure FITRIM minlen is rounded up to
fs block size") fixes was a little confusing as the user saw
"Input/output error" which masked the -EINVAL that sb_issue_discard()
returned.
sb_issue_discard() can fail for various reasons, so we should return its
return value from gfs2_rgrp_send_discards() to avoid all errors being
reported as IO errors.
This improves error reporting for FITRIM and makes no difference to the
-o discard code path because the return value from
gfs2_rgrp_send_discards() gets thrown away in that case (and the option
switches off). Presumably that's why it was ok to just return -EIO in
the past, before FITRIM was implemented.
Tested with xfstests.
Signed-off-by: Andrew Price <anprice@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Clang's structure layout randomization feature gets upset when it sees
struct address_space (which is randomized) cast to struct gfs2_glock.
This is due to seeing the mapping pointer as being treated as an array
of gfs2_glock, rather than "something else, before struct address_space":
In file included from fs/gfs2/acl.c:23:
fs/gfs2/meta_io.h:44:12: error: casting from randomized structure pointer type 'struct address_space *' to 'struct gfs2_glock *'
return (((struct gfs2_glock *)mapping) - 1)->gl_name.ln_sbd;
^
Replace the instances of open-coded pointer math with container_of()
usage, and update the allocator to match.
Some cleanups and conversion of gfs2_glock_get() and
gfs2_glock_dealloc() by Andreas.
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/lkml/202205041550.naKxwCBj-lkp@intel.com
Cc: Bob Peterson <rpeterso@redhat.com>
Cc: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Bill Wendling <morbo@google.com>
Cc: cluster-devel@redhat.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
A couple small cleanups for fs/verity/.
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Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt
Pull fsverity updates from Eric Biggers:
"A couple small cleanups for fs/verity/"
* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
fs-verity: Use struct_size() helper in enable_verity()
fs-verity: remove unused parameter desc_size in fsverity_create_info()
Some cleanups for fs/crypto/:
- Split up the misleadingly-named FS_CRYPTO_BLOCK_SIZE constant.
- Consistently report the encryption implementation that is being used.
- Add helper functions for the test_dummy_encryption mount option that
work properly with the new mount API. ext4 and f2fs will use these.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt
Pull fscrypt updates from Eric Biggers:
"Some cleanups for fs/crypto/:
- Split up the misleadingly-named FS_CRYPTO_BLOCK_SIZE constant.
- Consistently report the encryption implementation that is being
used.
- Add helper functions for the test_dummy_encryption mount option
that work properly with the new mount API. ext4 and f2fs will use
these"
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
fscrypt: add new helper functions for test_dummy_encryption
fscrypt: factor out fscrypt_policy_to_key_spec()
fscrypt: log when starting to use inline encryption
fscrypt: split up FS_CRYPTO_BLOCK_SIZE
Commit 87c9ce3ffe ("zonefs: Add active seq file accounting") wrongly
changed zonefs_init_file_inode() to always return 0 even if the call to
zonefs_zone_mgmt() fails. Fix this by propagating zonefs_zone_mgmt()
return value as the return value for zonefs_init_file_inode().
Fixes: 87c9ce3ffe ("zonefs: Add active seq file accounting")
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
- Initial support for the ARMv9 Scalable Matrix Extension (SME). SME
takes the approach used for vectors in SVE and extends this to provide
architectural support for matrix operations. No KVM support yet, SME
is disabled in guests.
- Support for crashkernel reservations above ZONE_DMA via the
'crashkernel=X,high' command line option.
- btrfs search_ioctl() fix for live-lock with sub-page faults.
- arm64 perf updates: support for the Hisilicon "CPA" PMU for monitoring
coherent I/O traffic, support for Arm's CMN-650 and CMN-700
interconnect PMUs, minor driver fixes, kerneldoc cleanup.
- Kselftest updates for SME, BTI, MTE.
- Automatic generation of the system register macros from a 'sysreg'
file describing the register bitfields.
- Update the type of the function argument holding the ESR_ELx register
value to unsigned long to match the architecture register size
(originally 32-bit but extended since ARMv8.0).
- stacktrace cleanups.
- ftrace cleanups.
- Miscellaneous updates, most notably: arm64-specific huge_ptep_get(),
avoid executable mappings in kexec/hibernate code, drop TLB flushing
from get_clear_flush() (and rename it to get_clear_contig()),
ARCH_NR_GPIO bumped to 2048 for ARCH_APPLE.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
- Initial support for the ARMv9 Scalable Matrix Extension (SME).
SME takes the approach used for vectors in SVE and extends this to
provide architectural support for matrix operations. No KVM support
yet, SME is disabled in guests.
- Support for crashkernel reservations above ZONE_DMA via the
'crashkernel=X,high' command line option.
- btrfs search_ioctl() fix for live-lock with sub-page faults.
- arm64 perf updates: support for the Hisilicon "CPA" PMU for
monitoring coherent I/O traffic, support for Arm's CMN-650 and
CMN-700 interconnect PMUs, minor driver fixes, kerneldoc cleanup.
- Kselftest updates for SME, BTI, MTE.
- Automatic generation of the system register macros from a 'sysreg'
file describing the register bitfields.
- Update the type of the function argument holding the ESR_ELx register
value to unsigned long to match the architecture register size
(originally 32-bit but extended since ARMv8.0).
- stacktrace cleanups.
- ftrace cleanups.
- Miscellaneous updates, most notably: arm64-specific huge_ptep_get(),
avoid executable mappings in kexec/hibernate code, drop TLB flushing
from get_clear_flush() (and rename it to get_clear_contig()),
ARCH_NR_GPIO bumped to 2048 for ARCH_APPLE.
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (145 commits)
arm64/sysreg: Generate definitions for FAR_ELx
arm64/sysreg: Generate definitions for DACR32_EL2
arm64/sysreg: Generate definitions for CSSELR_EL1
arm64/sysreg: Generate definitions for CPACR_ELx
arm64/sysreg: Generate definitions for CONTEXTIDR_ELx
arm64/sysreg: Generate definitions for CLIDR_EL1
arm64/sve: Move sve_free() into SVE code section
arm64: Kconfig.platforms: Add comments
arm64: Kconfig: Fix indentation and add comments
arm64: mm: avoid writable executable mappings in kexec/hibernate code
arm64: lds: move special code sections out of kernel exec segment
arm64/hugetlb: Implement arm64 specific huge_ptep_get()
arm64/hugetlb: Use ptep_get() to get the pte value of a huge page
arm64: kdump: Do not allocate crash low memory if not needed
arm64/sve: Generate ZCR definitions
arm64/sme: Generate defintions for SVCR
arm64/sme: Generate SMPRI_EL1 definitions
arm64/sme: Automatically generate SMPRIMAP_EL2 definitions
arm64/sme: Automatically generate SMIDR_EL1 defines
arm64/sme: Automatically generate defines for SMCR
...
frequency invariance code along with removing the need for unnecessary IPIs
- Finally remove a.out support
- The usual trivial cleanups and fixes all over x86
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Merge tag 'x86_cleanups_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Borislav Petkov:
- Serious sanitization and cleanup of the whole APERF/MPERF and
frequency invariance code along with removing the need for
unnecessary IPIs
- Finally remove a.out support
- The usual trivial cleanups and fixes all over x86
* tag 'x86_cleanups_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
x86: Remove empty files
x86/speculation: Add missing srbds=off to the mitigations= help text
x86/prctl: Remove pointless task argument
x86/aperfperf: Make it correct on 32bit and UP kernels
x86/aperfmperf: Integrate the fallback code from show_cpuinfo()
x86/aperfmperf: Replace arch_freq_get_on_cpu()
x86/aperfmperf: Replace aperfmperf_get_khz()
x86/aperfmperf: Store aperf/mperf data for cpu frequency reads
x86/aperfmperf: Make parts of the frequency invariance code unconditional
x86/aperfmperf: Restructure arch_scale_freq_tick()
x86/aperfmperf: Put frequency invariance aperf/mperf data into a struct
x86/aperfmperf: Untangle Intel and AMD frequency invariance init
x86/aperfmperf: Separate AP/BP frequency invariance init
x86/smp: Move APERF/MPERF code where it belongs
x86/aperfmperf: Dont wake idle CPUs in arch_freq_get_on_cpu()
x86/process: Fix kernel-doc warning due to a changed function name
x86: Remove a.out support
x86/mm: Replace nodes_weight() with nodes_empty() where appropriate
x86: Replace cpumask_weight() with cpumask_empty() where appropriate
x86/pkeys: Remove __arch_set_user_pkey_access() declaration
...
This set of patches improve zonefs open sequential file accounting and
adds accounting for active sequential files to allow the user to handle
the maximum number of active zones of an NVMe ZNS drive. sysfs
attributes for both open and active sequential files are also added to
facilitate access to this information from applications without
resorting to inspecting the block device limits.
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Merge tag 'zonefs-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
Pull zonefs updates from Damien Le Moal:
"This improves zonefs open sequential file accounting and adds
accounting for active sequential files to allow the user to handle the
maximum number of active zones of an NVMe ZNS drive.
sysfs attributes for both open and active sequential files are also
added to facilitate access to this information from applications
without resorting to inspecting the block device limits"
* tag 'zonefs-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
documentation: zonefs: Document sysfs attributes
documentation: zonefs: Cleanup the mount options section
zonefs: Add active seq file accounting
zonefs: Export open zone resource information through sysfs
zonefs: Always do seq file write open accounting
zonefs: Rename super block information fields
zonefs: Fix management of open zones
zonefs: Clear inode information flags on inode creation
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Merge tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"Here are the core block changes for 5.19. This contains:
- blk-throttle accounting fix (Laibin)
- Series removing redundant assignments (Michal)
- Expose bio cache via the bio_set, so that DM can use it (Mike)
- Finish off the bio allocation interface cleanups by dealing with
the weirdest member of the family. bio_kmalloc combines a kmalloc
for the bio and bio_vecs with a hidden bio_init call and magic
cleanup semantics (Christoph)
- Clean up the block layer API so that APIs consumed by file systems
are (almost) only struct block_device based, so that file systems
don't have to poke into block layer internals like the
request_queue (Christoph)
- Clean up the blk_execute_rq* API (Christoph)
- Clean up various lose end in the blk-cgroup code to make it easier
to follow in preparation of reworking the blkcg assignment for bios
(Christoph)
- Fix use-after-free issues in BFQ when processes with merged queues
get moved to different cgroups (Jan)
- BFQ fixes (Jan)
- Various fixes and cleanups (Bart, Chengming, Fanjun, Julia, Ming,
Wolfgang, me)"
* tag 'for-5.19/block-2022-05-22' of git://git.kernel.dk/linux-block: (83 commits)
blk-mq: fix typo in comment
bfq: Remove bfq_requeue_request_body()
bfq: Remove superfluous conversion from RQ_BIC()
bfq: Allow current waker to defend against a tentative one
bfq: Relax waker detection for shared queues
blk-cgroup: delete rcu_read_lock_held() WARN_ON_ONCE()
blk-throttle: Set BIO_THROTTLED when bio has been throttled
blk-cgroup: Remove unnecessary rcu_read_lock/unlock()
blk-cgroup: always terminate io.stat lines
block, bfq: make bfq_has_work() more accurate
block, bfq: protect 'bfqd->queued' by 'bfqd->lock'
block: cleanup the VM accounting in submit_bio
block: Fix the bio.bi_opf comment
block: reorder the REQ_ flags
blk-iocost: combine local_stat and desc_stat to stat
block: improve the error message from bio_check_eod
block: allow passing a NULL bdev to bio_alloc_clone/bio_init_clone
block: remove superfluous calls to blkcg_bio_issue_init
kthread: unexport kthread_blkcg
blk-cgroup: cleanup blkcg_maybe_throttle_current
...
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Merge tag 'for-5.19/writeback-2022-05-22' of git://git.kernel.dk/linux-block
Pull writeback fix from Jens Axboe:
"A single writeback fix that didn't belong in any other branch,
correcting the number of skipped pages"
* tag 'for-5.19/writeback-2022-05-22' of git://git.kernel.dk/linux-block:
fs-writeback: writeback_sb_inodes：Recalculate 'wrote' according skipped pages
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Merge tag 'for-5.19/io_uring-passthrough-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring NVMe command passthrough from Jens Axboe:
"On top of everything else, this adds support for passthrough for
io_uring.
The initial feature for this is NVMe passthrough support, which allows
non-filesystem based IO commands and admin commands.
To support this, io_uring grows support for SQE and CQE members that
are twice as big, allowing to pass in a full NVMe command without
having to copy data around. And to complete with more than just a
single 32-bit value as the output"
* tag 'for-5.19/io_uring-passthrough-2022-05-22' of git://git.kernel.dk/linux-block: (22 commits)
io_uring: cleanup handling of the two task_work lists
nvme: enable uring-passthrough for admin commands
nvme: helper for uring-passthrough checks
blk-mq: fix passthrough plugging
nvme: add vectored-io support for uring-cmd
nvme: wire-up uring-cmd support for io-passthru on char-device.
nvme: refactor nvme_submit_user_cmd()
block: wire-up support for passthrough plugging
fs,io_uring: add infrastructure for uring-cmd
io_uring: support CQE32 for nop operation
io_uring: enable CQE32
io_uring: support CQE32 in /proc info
io_uring: add tracing for additional CQE32 fields
io_uring: overflow processing for CQE32
io_uring: flush completions for CQE32
io_uring: modify io_get_cqe for CQE32
io_uring: add CQE32 completion processing
io_uring: add CQE32 setup processing
io_uring: change ring size calculation for CQE32
io_uring: store add. return values for CQE32
...
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Merge tag 'for-5.19/io_uring-net-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring 'more data in socket' support from Jens Axboe:
"To be able to fully utilize the 'poll first' support in the core
io_uring branch, it's advantageous knowing if the socket was empty
after a receive. This adds support for that"
* tag 'for-5.19/io_uring-net-2022-05-22' of git://git.kernel.dk/linux-block:
io_uring: return hint on whether more data is available after receive
tcp: pass back data left in socket after receive
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Merge tag 'for-5.19/io_uring-socket-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring socket() support from Jens Axboe:
"This adds support for socket(2) for io_uring. This is handy when using
direct / registered file descriptors with io_uring.
Outside of those two patches, a small series from Dylan on top that
improves the tracing by providing a text representation of the opcode
rather than needing to decode this by reading the header file every
time.
That sits in this branch as it was the last opcode added (until it
wasn't...)"
* tag 'for-5.19/io_uring-socket-2022-05-22' of git://git.kernel.dk/linux-block:
io_uring: use the text representation of ops in trace
io_uring: rename op -> opcode
io_uring: add io_uring_get_opcode
io_uring: add type to op enum
io_uring: add socket(2) support
net: add __sys_socket_file()
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Merge tag 'for-5.19/io_uring-xattr-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring xattr support from Jens Axboe:
"Support for the xattr variants"
* tag 'for-5.19/io_uring-xattr-2022-05-22' of git://git.kernel.dk/linux-block:
io_uring: cleanup error-handling around io_req_complete
io_uring: fix trace for reduced sqe padding
io_uring: add fgetxattr and getxattr support
io_uring: add fsetxattr and setxattr support
fs: split off do_getxattr from getxattr
fs: split off setxattr_copy and do_setxattr function from setxattr
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Merge tag 'for-5.19/io_uring-2022-05-22' of git://git.kernel.dk/linux-block
Pull io_uring updates from Jens Axboe:
"Here are the main io_uring changes for 5.19. This contains:
- Fixes for sparse type warnings (Christoph, Vasily)
- Support for multi-shot accept (Hao)
- Support for io_uring managed fixed files, rather than always
needing the applicationt o manage the indices (me)
- Fix for a spurious poll wakeup (Dylan)
- CQE overflow fixes (Dylan)
- Support more types of cancelations (me)
- Support for co-operative task_work signaling, rather than always
forcing an IPI (me)
- Support for doing poll first when appropriate, rather than always
attempting a transfer first (me)
- Provided buffer cleanups and support for mapped buffers (me)
- Improve how io_uring handles inflight SCM files (Pavel)
- Speedups for registered files (Pavel, me)
- Organize the completion data in a struct in io_kiocb rather than
keep it in separate spots (Pavel)
- task_work improvements (Pavel)
- Cleanup and optimize the submission path, in general and for
handling links (Pavel)
- Speedups for registered resource handling (Pavel)
- Support sparse buffers and file maps (Pavel, me)
- Various fixes and cleanups (Almog, Pavel, me)"
* tag 'for-5.19/io_uring-2022-05-22' of git://git.kernel.dk/linux-block: (111 commits)
io_uring: fix incorrect __kernel_rwf_t cast
io_uring: disallow mixed provided buffer group registrations
io_uring: initialize io_buffer_list head when shared ring is unregistered
io_uring: add fully sparse buffer registration
io_uring: use rcu_dereference in io_close
io_uring: consistently use the EPOLL* defines
io_uring: make apoll_events a __poll_t
io_uring: drop a spurious inline on a forward declaration
io_uring: don't use ERR_PTR for user pointers
io_uring: use a rwf_t for io_rw.flags
io_uring: add support for ring mapped supplied buffers
io_uring: add io_pin_pages() helper
io_uring: add buffer selection support to IORING_OP_NOP
io_uring: fix locking state for empty buffer group
io_uring: implement multishot mode for accept
io_uring: let fast poll support multishot
io_uring: add REQ_F_APOLL_MULTISHOT for requests
io_uring: add IORING_ACCEPT_MULTISHOT for accept
io_uring: only wake when the correct events are set
io_uring: avoid io-wq -EAGAIN looping for !IOPOLL
...
Fixes sparce warnings:
fs/notify/fanotify/fanotify_user.c:267:63: sparse:
warning: restricted fmode_t degrades to integer
fs/notify/fanotify/fanotify_user.c:1351:28: sparse:
warning: restricted fmode_t degrades to integer
FMODE_NONTIFY have bitwise fmode_t type and requires __force attribute
for any casts.
Signed-off-by: Vasily Averin <vvs@openvz.org>
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/9adfd6ac-1b89-791e-796b-49ada3293985@openvz.org
Syzbot reported slab-out-of-bounds read in exfat_clear_bitmap.
This was triggered by reproducer calling truncute with size 0,
which causes the following trace:
BUG: KASAN: slab-out-of-bounds in exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174
Read of size 8 at addr ffff888115aa9508 by task syz-executor251/365
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118
print_address_description+0x81/0x3c0 mm/kasan/report.c:233
__kasan_report mm/kasan/report.c:419 [inline]
kasan_report+0x1a4/0x1f0 mm/kasan/report.c:436
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174
exfat_free_cluster+0x25a/0x4a0 fs/exfat/fatent.c:181
__exfat_truncate+0x99e/0xe00 fs/exfat/file.c:217
exfat_truncate+0x11b/0x4f0 fs/exfat/file.c:243
exfat_setattr+0xa03/0xd40 fs/exfat/file.c:339
notify_change+0xb76/0xe10 fs/attr.c:336
do_truncate+0x1ea/0x2d0 fs/open.c:65
Move the is_valid_cluster() helper from fatent.c to a common
header to make it reusable in other *.c files. And add is_valid_cluster()
to validate if cluster number is within valid range in exfat_clear_bitmap()
and exfat_set_bitmap().
Link: https://syzkaller.appspot.com/bug?id=50381fc73821ecae743b8cf24b4c9a04776f767c
Reported-by: syzbot+a4087e40b9c13aad7892@syzkaller.appspotmail.com
Fixes: 1e49a94cf7 ("exfat: add bitmap operations")
Cc: stable@vger.kernel.org # v5.7+
Signed-off-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
If 'dirsync' is enabled, when zeroing a cluster, submitting
sector by sector will generate many block requests, will
cause the block device to not fully perform its performance.
This commit makes the sectors in a cluster to be submitted in
once, it will reduce the number of block requests. This will
make the block device to give full play to its performance.
Test create 1000 directories on SD card with:
$ time (for ((i=0;i<1000;i++)); do mkdir dir${i}; done)
Performance has been improved by more than 73% on imx6q-sabrelite.
Cluster size Before After Improvement
64 KBytes 3m34.036s 0m56.052s 73.8%
128 KBytes 6m2.644s 1m13.354s 79.8%
256 KBytes 11m22.202s 1m39.451s 85.4%
imx6q-sabrelite:
- CPU: 792 MHz x4
- Memory: 1GB DDR3
- SD Card: SanDisk 8GB Class 4
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
EXFAT_TZ_VALID bit in {create,modify,access}_tz is corresponding to
OffsetValid field in exfat specification [1]. When this bit isn't
set, timestamps should be treated as having the same UTC offset as
the current local time.
Currently, there is an option 'time_offset' for users to specify the
UTC offset for this issue. This patch introduces a new mount option
'sys_tz' to use system timezone as time offset.
Link: [1] https://docs.microsoft.com/en-us/windows/win32/fileio/exfat-specification#74102-offsetvalid-field
Signed-off-by: Chung-Chiang Cheng <cccheng@synology.com>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
During renaming, the parent directory information maybe
updated. But the file/directory still references to the
old parent directory information.
This bug will cause 2 problems.
(1) The renamed file can not be written.
[10768.175172] exFAT-fs (sda1): error, failed to bmap (inode : 7afd50e4 iblock : 0, err : -5)
[10768.184285] exFAT-fs (sda1): Filesystem has been set read-only
ash: write error: Input/output error
(2) Some dentries of the renamed file/directory are not set
to deleted after removing the file/directory.
exfat_update_parent_info() is a workaround for the wrong parent
directory information being used after renaming. Now that bug is
fixed, this is no longer needed, so remove it.
Fixes: 5f2aa07507 ("exfat: add inode operations")
Cc: stable@vger.kernel.org # v5.7+
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Daniel Palmer <daniel.palmer@sony.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
If a client's address changes, say if it is NAT'd, this can disrupt an in
progress operation. For most operations, this is not much of a problem,
but StoreData can be different as some servers modify the target file as
the data comes in, so if a store request is disrupted, the file can get
corrupted on the server.
The problem is that the server doesn't recognise packets that come after
the change of address as belonging to the original client and will bounce
them, either by sending an OUT_OF_SEQUENCE ACK to the apparent new call if
the packet number falls within the initial sequence number window of a call
or by sending an EXCEEDS_WINDOW ACK if it falls outside and then aborting
it. In both cases, firstPacket will be 1 and previousPacket will be 0 in
the ACK information.
Fix this by the following means:
(1) If a client call receives an EXCEEDS_WINDOW ACK with firstPacket as 1
and previousPacket as 0, assume this indicates that the server saw the
incoming packets from a different peer and thus as a different call.
Fail the call with error -ENETRESET.
(2) Also fail the call if a similar OUT_OF_SEQUENCE ACK occurs if the
first packet has been hard-ACK'd. If it hasn't been hard-ACK'd, the
ACK packet will cause it to get retransmitted, so the call will just
be repeated.
(3) Make afs_select_fileserver() treat -ENETRESET as a straight fail of
the operation.
(4) Prioritise the error code over things like -ECONNRESET as the server
did actually respond.
(5) Make writeback treat -ENETRESET as a retryable error and make it
redirty all the pages involved in a write so that the VM will retry.
Note that there is still a circumstance that I can't easily deal with: if
the operation is fully received and processed by the server, but the reply
is lost due to address change. There's no way to know if the op happened.
We can examine the server, but a conflicting change could have been made by
a third party - and we can't tell the difference. In such a case, a
message like:
kAFS: vnode modified {100058:146266} b7->b8 YFS.StoreData64 (op=2646a)
will be logged to dmesg on the next op to touch the file and the client
will reset the inode state, including invalidating clean parts of the
pagecache.
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-afs@lists.infradead.org
Link: http://lists.infradead.org/pipermail/linux-afs/2021-December/004811.html # v1
Signed-off-by: David S. Miller <davem@davemloft.net>
The RX_USER_ABORT code should really only be used to indicate that the user
of the rxrpc service (ie. userspace) implicitly caused a call to be aborted
- for instance if the AF_RXRPC socket is closed whilst the call was in
progress. (The user may also explicitly abort a call and specify the abort
code to use).
Change some of the points of generation to use other abort codes instead:
(1) Abort the call with RXGEN_SS_UNMARSHAL or RXGEN_CC_UNMARSHAL if we see
ENOMEM and EFAULT during received data delivery and abort with
RX_CALL_DEAD in the default case.
(2) Abort with RXGEN_SS_MARSHAL if we get ENOMEM whilst trying to send a
reply.
(3) Abort with RX_CALL_DEAD if we stop hearing from the peer if we had
heard from the peer and abort with RX_CALL_TIMEOUT if we hadn't.
(4) Abort with RX_CALL_DEAD if we try to disconnect a call that's not
completed successfully or been aborted.
Reported-by: Jeffrey Altman <jaltman@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: David S. Miller <davem@davemloft.net>
There's a locking issue with the per-netns list of calls in rxrpc. The
pieces of code that add and remove a call from the list use write_lock()
and the calls procfile uses read_lock() to access it. However, the timer
callback function may trigger a removal by trying to queue a call for
processing and finding that it's already queued - at which point it has a
spare refcount that it has to do something with. Unfortunately, if it puts
the call and this reduces the refcount to 0, the call will be removed from
the list. Unfortunately, since the _bh variants of the locking functions
aren't used, this can deadlock.
================================
WARNING: inconsistent lock state
5.18.0-rc3-build4+ #10 Not tainted
--------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
ksoftirqd/2/25 [HC0[0]:SC1[1]:HE1:SE0] takes:
ffff888107ac4038 (&rxnet->call_lock){+.?.}-{2:2}, at: rxrpc_put_call+0x103/0x14b
{SOFTIRQ-ON-W} state was registered at:
...
Possible unsafe locking scenario:
CPU0
----
lock(&rxnet->call_lock);
<Interrupt>
lock(&rxnet->call_lock);
*** DEADLOCK ***
1 lock held by ksoftirqd/2/25:
#0: ffff8881008ffdb0 ((&call->timer)){+.-.}-{0:0}, at: call_timer_fn+0x5/0x23d
Changes
=======
ver #2)
- Changed to using list_next_rcu() rather than rcu_dereference() directly.
Fixes: 17926a7932 ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: David S. Miller <davem@davemloft.net>
If a callback break occurs (change notification), afs_getattr() needs to
issue an FS.FetchStatus RPC operation to update the status of the file
being examined by the stat-family of system calls.
Fix afs_getattr() to do this if AFS_VNODE_CB_PROMISED has been cleared
on a vnode by a callback break. Skip this if AT_STATX_DONT_SYNC is set.
This can be tested by appending to a file on one AFS client and then
using "stat -L" to examine its length on a machine running kafs. This
can also be watched through tracing on the kafs machine. The callback
break is seen:
kworker/1:1-46 [001] ..... 978.910812: afs_cb_call: c=0000005f YFSCB.CallBack
kworker/1:1-46 [001] ...1. 978.910829: afs_cb_break: 100058:23b4c:242d2c2 b=2 s=1 break-cb
kworker/1:1-46 [001] ..... 978.911062: afs_call_done: c=0000005f ret=0 ab=0 [0000000082994ead]
And then the stat command generated no traffic if unpatched, but with
this change a call to fetch the status can be observed:
stat-4471 [000] ..... 986.744122: afs_make_fs_call: c=000000ab 100058:023b4c:242d2c2 YFS.FetchStatus
stat-4471 [000] ..... 986.745578: afs_call_done: c=000000ab ret=0 ab=0 [0000000087fc8c84]
Fixes: 08e0e7c82e ("[AF_RXRPC]: Make the in-kernel AFS filesystem use AF_RXRPC.")
Reported-by: Markus Suvanto <markus.suvanto@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Tested-by: Markus Suvanto <markus.suvanto@gmail.com>
Tested-by: kafs-testing+fedora34_64checkkafs-build-496@auristor.com
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216010
Link: https://lore.kernel.org/r/165308359800.162686.14122417881564420962.stgit@warthog.procyon.org.uk/ # v1
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds