As per 39bd2b6a37 ("dt-bindings: Improve phandle-array schemas"), the
phandle-array bindings have been disambiguated. This fixes the new
RISC-V idle-states bindings to comply with the schema.
Fixes: 1bd524f7e8 ("dt-bindings: Add common bindings for ARM and RISC-V idle states")
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Merge tag '5.18-rc-ksmbd-server-fixes' of git://git.samba.org/ksmbd
Pull ksmbd updates from Steve French:
- three cleanup fixes
- shorten module load warning
- two documentation fixes
* tag '5.18-rc-ksmbd-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: replace usage of found with dedicated list iterator variable
ksmbd: Remove a redundant zeroing of memory
MAINTAINERS: ksmbd: switch Sergey to reviewer
ksmbd: shorten experimental warning on loading the module
ksmbd: use netif_is_bridge_port
Documentation: ksmbd: update Feature Status table
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Merge tag '5.18-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Pull more cifs updates from Steve French:
- three fixes for big endian issues in how Persistent and Volatile file
ids were stored
- Various misc. fixes: including some for oops, 2 for ioctls, 1 for
writeback
- cleanup of how tcon (tree connection) status is tracked
- Four changesets to move various duplicated protocol definitions
(defined both in cifs.ko and ksmbd) into smbfs_common/smb2pdu.h
- important performance improvement to use cached handles in some key
compounding code paths (reduces numbers of opens/closes sent in some
workloads)
- fix to allow alternate DFS target to be used to retry on a failed i/o
* tag '5.18-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix NULL ptr dereference in smb2_ioctl_query_info()
cifs: prevent bad output lengths in smb2_ioctl_query_info()
smb3: fix ksmbd bigendian bug in oplock break, and move its struct to smbfs_common
smb3: cleanup and clarify status of tree connections
smb3: move defines for query info and query fsinfo to smbfs_common
smb3: move defines for ioctl protocol header and SMB2 sizes to smbfs_common
[smb3] move more common protocol header definitions to smbfs_common
cifs: fix incorrect use of list iterator after the loop
ksmbd: store fids as opaque u64 integers
cifs: fix bad fids sent over wire
cifs: change smb2_query_info_compound to use a cached fid, if available
cifs: convert the path to utf16 in smb2_query_info_compound
cifs: writeback fix
cifs: do not skip link targets when an I/O fails
- Add keep_last_dots mount option to allow access to paths with trailing dots.
- Avoid repetitive volume dirty bit set/clear to improve storage life time.
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Merge tag 'exfat-for-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
Pull exfat updates from Namjae Jeon:
- Add keep_last_dots mount option to allow access to paths with
trailing dots
- Avoid repetitive volume dirty bit set/clear to improve storage life
time
* tag 'exfat-for-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
exfat: do not clear VolumeDirty in writeback
exfat: allow access to paths with trailing dots
The test fails:
# ./test_offload.py
[...]
Test bpftool bound info reporting (own ns)...
FAIL: 3 BPF maps loaded, expected 2
File "/root/bpf-next/tools/testing/selftests/bpf/./test_offload.py", line 1177, in <module>
check_dev_info(False, "")
File "/root/bpf-next/tools/testing/selftests/bpf/./test_offload.py", line 645, in check_dev_info
maps = bpftool_map_list(expected=2, ns=ns)
File "/root/bpf-next/tools/testing/selftests/bpf/./test_offload.py", line 190, in bpftool_map_list
fail(True, "%d BPF maps loaded, expected %d" %
File "/root/bpf-next/tools/testing/selftests/bpf/./test_offload.py", line 86, in fail
tb = "".join(traceback.extract_stack().format())
Some base maps do not have names and they cannot be added due to compatibility
with older kernels, see [0]. So, just skip the unnamed maps.
[0] https://lore.kernel.org/bpf/CAEf4BzY66WPKQbDe74AKZ6nFtZjq5e+G3Ji2egcVytB9R6_sGQ@mail.gmail.com/
Signed-off-by: Yauheni Kaliuta <ykaliuta@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20220329081100.9705-1-ykaliuta@redhat.com
- Remove ->readpages infrastructure
- Remove AOP_FLAG_CONT_EXPAND
- Move read_descriptor_t to networking code
- Pass the iocb to generic_perform_write
- Minor updates to iomap, btrfs, ext4, f2fs, ntfs
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Merge tag 'folio-5.18d' of git://git.infradead.org/users/willy/pagecache
Pull more filesystem folio updates from Matthew Wilcox:
"A mixture of odd changes that didn't quite make it into the original
pull and fixes for things that did. Also the readpages changes had to
wait for the NFS tree to be pulled first.
- Remove ->readpages infrastructure
- Remove AOP_FLAG_CONT_EXPAND
- Move read_descriptor_t to networking code
- Pass the iocb to generic_perform_write
- Minor updates to iomap, btrfs, ext4, f2fs, ntfs"
* tag 'folio-5.18d' of git://git.infradead.org/users/willy/pagecache:
btrfs: Remove a use of PAGE_SIZE in btrfs_invalidate_folio()
ntfs: Correct mark_ntfs_record_dirty() folio conversion
f2fs: Get the superblock from the mapping instead of the page
f2fs: Correct f2fs_dirty_data_folio() conversion
ext4: Correct ext4_journalled_dirty_folio() conversion
filemap: Remove AOP_FLAG_CONT_EXPAND
fs: Pass an iocb to generic_perform_write()
fs, net: Move read_descriptor_t to net.h
fs: Remove read_actor_t
iomap: Simplify is_partially_uptodate a little
readahead: Update comments
mm: remove the skip_page argument to read_pages
mm: remove the pages argument to read_pages
fs: Remove ->readpages address space operation
readahead: Remove read_cache_pages()
The attr->value_size is already assigned to smap->map.value_size
in bpf_map_init_from_attr(), there is no need to do it again in
stack_map_alloc().
Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Joanne Koong <joannelkoong@gmail.com>
Link: https://lore.kernel.org/bpf/20220323073626.958652-1-ytcoode@gmail.com
- Documentation update
- Fix test-suite build after move of bitmap.h
- Fix xas_create_range() when a large entry is already present
- Fix xas_split() of a shadow entry
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Merge tag 'xarray-5.18' of git://git.infradead.org/users/willy/xarray
Pull XArray updates from Matthew Wilcox:
- Documentation update
- Fix test-suite build after move of bitmap.h
- Fix xas_create_range() when a large entry is already present
- Fix xas_split() of a shadow entry
* tag 'xarray-5.18' of git://git.infradead.org/users/willy/xarray:
XArray: Update the LRU list in xas_split()
XArray: Fix xas_create_range() when multi-order entry present
XArray: Include bitmap.h from xarray.h
XArray: Document the locking requirement for the xa_state
Was never used in bpf_sk_assign_test(), and was removed from handle_{tcp,udp}()
in commit 0b9ad56b1e ("selftests/bpf: Use SOCKMAP for server sockets in
bpf_sk_assign test").
Fixes: 0b9ad56b1e ("selftests/bpf: Use SOCKMAP for server sockets in bpf_sk_assign test")
Signed-off-by: Eyal Birger <eyal.birger@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220329154914.3718658-1-eyal.birger@gmail.com
This has a handful of new features
* Support for CURRENT_STACK_POINTER, which enables some extra stack
debugging for HARDENED_USERCOPY.
* Support for the new SBI CPU idle extension, via cpuidle and suspend
drivers.
* Profiling has been enabled in the defconfigs.
but is mostly fixes and cleanups.
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Merge tag 'riscv-for-linus-5.18-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt:
"This has a handful of new features:
- Support for CURRENT_STACK_POINTER, which enables some extra stack
debugging for HARDENED_USERCOPY.
- Support for the new SBI CPU idle extension, via cpuidle and suspend
drivers.
- Profiling has been enabled in the defconfigs.
but is mostly fixes and cleanups"
* tag 'riscv-for-linus-5.18-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (21 commits)
RISC-V: K210 defconfigs: Drop redundant MEMBARRIER=n
RISC-V: defconfig: Drop redundant SBI HVC and earlycon
Documentation: riscv: remove non-existent directory from table of contents
riscv: cpu.c: don't use kernel-doc markers for comments
RISC-V: Enable profiling by default
RISC-V: module: fix apply_r_riscv_rcv_branch_rela typo
RISC-V: Declare per cpu boot data as static
RISC-V: Fix a comment typo in riscv_of_parent_hartid()
riscv: Increase stack size under KASAN
riscv: Fix fill_callchain return value
riscv: dts: canaan: Fix SPI3 bus width
riscv: Rename "sp_in_global" to "current_stack_pointer"
riscv module: remove (NOLOAD)
RISC-V: Enable RISC-V SBI CPU Idle driver for QEMU virt machine
dt-bindings: Add common bindings for ARM and RISC-V idle states
cpuidle: Add RISC-V SBI CPU idle driver
cpuidle: Factor-out power domain related code from PSCI domain driver
RISC-V: Add SBI HSM suspend related defines
RISC-V: Add arch functions for non-retentive suspend entry/exit
RISC-V: Rename relocate() and make it global
...
- Add kretprobes framepointer verification and return address recovery
in stacktrace.
- Support control domain masks on custom zcrypt devices and filter admin
requests.
- Cleanup timer API usage.
- Rework absolute lowcore access helpers.
- Other various small improvements and fixes.
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Merge tag 's390-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Vasily Gorbik:
- Add kretprobes framepointer verification and return address recovery
in stacktrace.
- Support control domain masks on custom zcrypt devices and filter
admin requests.
- Cleanup timer API usage.
- Rework absolute lowcore access helpers.
- Other various small improvements and fixes.
* tag 's390-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (26 commits)
s390/alternatives: avoid using jgnop mnemonic
s390/pci: rename get_zdev_by_bus() to zdev_from_bus()
s390/pci: improve zpci_dev reference counting
s390/smp: use physical address for SIGP_SET_PREFIX command
s390: cleanup timer API use
s390/zcrypt: fix using the correct variable for sizeof()
s390/vfio-ap: fix kernel doc and signature of group notifier functions
s390/maccess: rework absolute lowcore accessors
s390/smp: cleanup control register update routines
s390/smp: cleanup target CPU callback starting
s390/test_unwind: verify __kretprobe_trampoline is replaced
s390/unwind: avoid duplicated unwinding entries for kretprobes
s390/unwind: recover kretprobe modified return address in stacktrace
s390/kprobes: enable kretprobes framepointer verification
s390/test_unwind: extend kretprobe test
s390/ap: adjust whitespace
s390/ap: use insn format for new instructions
s390/alternatives: use insn format for new instructions
s390/alternatives: use instructions instead of byte patterns
s390/traps: improve panic message for translation-specification exception
...
The introduction of vmap-stack on 32-bit arm caused a regression
on a few omap3/omap4 machines that pass a stack variable into
a firmware interface.
The early pre-ACPI AMD Seattle machines have been broken for
a while, Ard Biesheuvel has a series to bring them back for now.
A few machines with multiple DMA channels used on a device have
the channels in the wrong order according to the binding, which
causes a harmless warning. Reversing the order is easier than
fixing the tools to suppress the warning.
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Merge tag 'soc-fixes-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd BergmannL
"The introduction of vmap-stack on 32-bit arm caused a regression on a
few omap3/omap4 machines that pass a stack variable into a firmware
interface.
The early pre-ACPI AMD Seattle machines have been broken for a while,
Ard Biesheuvel has a series to bring them back for now.
A few machines with multiple DMA channels used on a device have the
channels in the wrong order according to the binding, which causes a
harmless warning. Reversing the order is easier than fixing the tools
to suppress the warning"
* tag 'soc-fixes-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
arm64: dts: ls1046a: Update i2c node dma properties
arm64: dts: ls1043a: Update i2c dma properties
ARM: dts: spear1340: Update serial node properties
ARM: dts: spear13xx: Update SPI dma properties
ARM: OMAP2+: Fix regression for smc calls for vmap stack
dt: amd-seattle: add a description of the CPUs and caches
dt: amd-seattle: disable IPMI controller and some GPIO blocks on B0
dt: amd-seattle: add description of the SATA/CCP SMMUs
dt: amd-seattle: add a description of the PCIe SMMU
dt: amd-seattle: fix PCIe legacy interrupt routing
dt: amd-seattle: upgrade AMD Seattle XGBE to new SMMU binding
dt: amd-seattle: remove Overdrive revision A0 support
dt: amd-seattle: remove Husky platform
Addresses this coccinelle warning:
./tools/perf/util/evlist.c:1333:5-8: Unneeded variable: "err". Return
"- ENOMEM" on line 1358
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/1648432532-23151-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
perf_cpu_map__merge() will reuse one of its arguments if they are equal or
the other argument is NULL.
The arguments could be reused if it is known one set of values is a
subset of the other.
For example, a map of 0-1 and a map of just 0 when merged yields the map
of 0-1.
Currently a new map is created rather than adding a reference count to
the original 0-1 map.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: John Garry <john.garry@huawei.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20220328232648.2127340-5-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Returns true if the second argument is a subset of the first.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: John Garry <john.garry@huawei.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20220328232648.2127340-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
evlist contains cpus and all_cpus. all_cpus is the union of the cpu maps
of all evsels.
For non-task targets, cpus is set to be cpus requested from the command
line, defaulting to all online cpus if no cpus are specified.
For an uncore event, all_cpus may be just CPU 0 or every online CPU.
This causes all_cpus to have fewer values than the cpus variable which
is confusing given the 'all' in the name.
To try to make the behavior clearer, rename cpus to user_requested_cpus
and add comments on the two struct variables.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: John Garry <john.garry@huawei.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20220328232648.2127340-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This essentially reverts commit c72e3f04b4 ("tools/perf/build:
Speed up git-version test on re-make") and commit 4e666cdb06
("perf tools: Fix dependency for version file creation")
In commit c72e3f04b4 ("tools/perf/build: Speed up git-version test
on re-make"), a makefile dependency on .git/HEAD was added. The
background is that running PERF-VERSION-FILE is relatively slow, and
commands like "git describe" are particularly slow.
In commit 4e666cdb06 ("perf tools: Fix dependency for version file
creation"), an additional dependency on .git/ORIG_HEAD was added, as
.git/HEAD may not change for "git reset --hard HEAD^" command. However,
depending on whether we're on a branch or not, a "git cherry-pick" may
not lead to the version being updated.
As discussed with the git community in [0], using git internal files for
dependencies is not reliable. Commit 4e666cdb06 also breaks some build
scenarios [1].
As mentioned, c72e3f04b4 ("tools/perf/build: Speed up git-version
test on re-make") was added to speed up the build. However in commit
7572733b84 ("perf tools: Fix version kernel tag") we removed the
call to "git describe", so just revert Makefile.perf back to same as pre
c72e3f04b4 ("tools/perf/build: Speed up git-version test on
re-make") and the build should not be so slow, as below:
Pre 7572733b84:
$> time util/PERF-VERSION-GEN
PERF_VERSION = 5.17.rc8.g4e666cdb06ee
real 0m0.110s
user 0m0.091s
sys 0m0.019s
Post 7572733b84:
$> time util/PERF-VERSION-GEN
PERF_VERSION = 5.17.rc8.g7572733b8499
real 0m0.039s
user 0m0.036s
sys 0m0.007s
[0] https://lore.kernel.org/git/87wngkpddp.fsf@igel.home/T/#m4a4dd6de52fdbe21179306cd57b3761eb07f45f8
[1] https://lore.kernel.org/linux-perf-users/20220329093120.4173283-1-matthieu.baerts@tessares.net/T/#u
Committer testing:
After a fresh rebuild using 'make -C tools/perf O=/tmp/build/perf install-bin':
$ perf -v
perf version 5.17.g162f9db407b6
$ git log --oneline -1
162f9db407b6a6e5 (HEAD -> perf/core) perf tools: Stop depending on .git files for building PERF-VERSION-FILE
$
Now using a detached tarball, i.e. outside the kernel source tree:
$ ls -la perf*tar
ls: cannot access 'perf*tar': No such file or directory
$ make perf-tar-src-pkg
TAR
PERF_VERSION = 5.17.g31d10b3ef133
$ ls -la perf*tar
-rw-r--r--. 1 acme acme 22241280 Mar 30 13:26 perf-5.17.0.tar
$ mv perf-5.17.0.tar /tmp
$ cd /tmp
$ tar xf perf-5.17.0.tar
$ cd perf-5.17.0/
$ make -C tools/perf |& tail
CC util/pmu.o
CC util/pmu-flex.o
CC util/expr-flex.o
CC util/expr.o
LD util/scripting-engines/perf-in.o
LD util/intel-pt-decoder/perf-in.o
LD util/perf-in.o
LD perf-in.o
LINK perf
make: Leaving directory '/tmp/perf-5.17.0/tools/perf'
$ tools/perf/perf -v
perf version 5.17.g31d10b3ef133
$ pwd
/tmp/perf-5.17.0
$ cat PERF-VERSION-FILE
#define PERF_VERSION "5.17.g31d10b3ef133"
$
Fixes: 4e666cdb06 ("perf tools: Fix dependency for version file creation")
Reported-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: John Garry <john.garry@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/1648635774-14581-1-git-send-email-john.garry@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick the changes from:
991625f3dd ("x86/ibt: Add IBT feature, MSR and #CP handling")
This only causes these perf files to be rebuilt:
CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o
And addresses this perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/YkSCx2kr4ambH+Qe@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick up the changes in:
caa574ffc4 ("drm/i915/uapi: document behaviour for DG2 64K support")
That don't add any new ioctl, so no changes in tooling.
This silences this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Link: http://lore.kernel.org/lkml/YkSChHqaOApscFQ0@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick the changes in:
6d8491910f ("KVM: x86: Introduce KVM_CAP_DISABLE_QUIRKS2")
ef11c9463a ("KVM: s390: Add vm IOCTL for key checked guest absolute memory access")
e9e9feebcb ("KVM: s390: Add optional storage key checking to MEMOP IOCTL")
That just rebuilds perf, as these patches don't add any new KVM ioctl to
be harvested for the the 'perf trace' ioctl syscall argument
beautifiers.
This is also by now used by tools/testing/selftests/kvm/, a simple test
build succeeded.
This silences this perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Cc: Oliver Upton <oupton@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Link: http://lore.kernel.org/lkml/YkSCOWHQdir1lhdJ@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick the changes from:
34739fd95f ("KVM: arm64: Indicate SYSTEM_RESET2 in kvm_run::system_event flags field")
583cda1b0e ("KVM: arm64: Refuse to run VCPU if the PMU doesn't match the physical CPU")
That don't causes any changes in tooling (when built on x86), only
addresses this perf build warning:
Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h
Cc: Marc Zyngier <maz@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Link: https://lore.kernel.org/lkml/YkSB4Q7kWmnaqeZU@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick the changes from:
9457056ac4 ("mm: madvise: MADV_DONTNEED_LOCKED")
That result in these changes in the tools:
$ diff -u tools/include/uapi/asm-generic/mman-common.h include/uapi/asm-generic/mman-common.h
--- tools/include/uapi/asm-generic/mman-common.h 2022-03-29 16:17:50.461694991 -0300
+++ include/uapi/asm-generic/mman-common.h 2022-03-27 19:12:48.923250468 -0300
@@ -75,6 +75,8 @@
#define MADV_POPULATE_READ 22 /* populate (prefault) page tables readable */
#define MADV_POPULATE_WRITE 23 /* populate (prefault) page tables writable */
+#define MADV_DONTNEED_LOCKED 24 /* like DONTNEED, but drop locked pages too */
+
/* compatibility flags */
#define MAP_FILE 0
$ tools/perf/trace/beauty/madvise_behavior.sh > before
$ cp include/uapi/asm-generic/mman-common.h tools/include/uapi/asm-generic/mman-common.h
$ tools/perf/trace/beauty/madvise_behavior.sh > after
$ diff -u before after
--- before 2022-03-29 16:18:04.091044244 -0300
+++ after 2022-03-29 16:18:11.692238906 -0300
@@ -20,6 +20,7 @@
[21] = "PAGEOUT",
[22] = "POPULATE_READ",
[23] = "POPULATE_WRITE",
+ [24] = "DONTNEED_LOCKED",
[100] = "HWPOISON",
[101] = "SOFT_OFFLINE",
};
$
I.e. now when madvise gets those behaviours as args, 'perf trace' will
be able to translate from the number to a human readable string and to
use the strings in tracepoint filter expressions.
This addresses the following perf build warning:
Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/mman-common.h' differs from latest version at 'include/uapi/asm-generic/mman-common.h'
diff -u tools/include/uapi/asm-generic/mman-common.h include/uapi/asm-generic/mman-common.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/YkNcUfeh795yqGMV@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick the changes in:
fba60b171a ("libbpf: Use IS_ERR_OR_NULL() in hashmap__free()")
That don't entail any changes in tools/perf.
This addresses this perf build warning:
Warning: Kernel ABI header at 'tools/perf/util/hashmap.h' differs from latest version at 'tools/lib/bpf/hashmap.h'
diff -u tools/perf/util/hashmap.h tools/lib/bpf/hashmap.h
Not a kernel ABI, its just that this uses the mechanism in place for
checking kernel ABI files drift.
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mauricio Vásquez <mauricio@kinvolk.io>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/YkMb2SAIai2VeuUD@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Passing NULL to perf_cpu_map__max doesn't make sense as there is no
valid max. Avoid this problem by null checking in
perf_stat_init_aggr_mode.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: John Garry <john.garry@huawei.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20220328062414.1893550-5-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Merge still more updates from Andrew Morton:
"16 patches.
Subsystems affected by this patch series: ofs2, nilfs2, mailmap, and
mm (madvise, mlock, mfence, memory-failure, kasan, debug, kmemleak,
and damon)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/damon: prevent activated scheme from sleeping by deactivated schemes
mm/kmemleak: reset tag when compare object pointer
doc/vm/page_owner.rst: remove content related to -c option
tools/vm/page_owner_sort.c: remove -c option
mm, kasan: fix __GFP_BITS_SHIFT definition breaking LOCKDEP
mm,hwpoison: unmap poisoned page before invalidation
mailmap: update Kirill's email
mm: kfence: fix objcgs vector allocation
mm/munlock: protect the per-CPU pagevec by a local_lock_t
mm/munlock: update Documentation/vm/unevictable-lru.rst
mm/munlock: add lru_add_drain() to fix memcg_stat_test
nilfs2: get rid of nilfs_mapping_init()
nilfs2: fix lockdep warnings during disk space reclamation
nilfs2: fix lockdep warnings in page operations for btree nodes
ocfs2: fix crash when mount with quota enabled
Revert "mm: madvise: skip unmapped vma holes passed to process_madvise"
In the DAMON, the minimum wait time of the schemes decides whether the
kernel wakes up 'kdamon_fn()'. But since the minimum wait time is
initialized to zero, there are corner cases against the original
objective.
For example, if we have several schemes for one target, and if the wait
time of the first scheme is zero, the minimum wait time will set zero,
which means 'kdamond_fn()' should wake up to apply this scheme.
However, in the following scheme, wait time can be set to non-zero.
Thus, the mininum wait time will be set to non-zero, which can cause
sleeping this interval for 'kdamon_fn()' due to one deactivated last
scheme.
This commit prevents making DAMON monitoring inactive state due to other
deactivated schemes.
Link: https://lkml.kernel.org/r/20220330105302.32114-1-tome01@ajou.ac.kr
Signed-off-by: Jonghyeon Kim <tome01@ajou.ac.kr>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When we use HW-tag based kasan and enable vmalloc support, we hit the
following bug. It is due to comparison between tagged object and
non-tagged pointer.
We need to reset the kasan tag when we need to compare tagged object and
non-tagged pointer.
kmemleak: [name:kmemleak&]Scan area larger than object 0xffffffe77076f440
CPU: 4 PID: 1 Comm: init Tainted: G S W 5.15.25-android13-0-g5cacf919c2bc #1
Hardware name: MT6983(ENG) (DT)
Call trace:
add_scan_area+0xc4/0x244
kmemleak_scan_area+0x40/0x9c
layout_and_allocate+0x1e8/0x288
load_module+0x2c8/0xf00
__se_sys_finit_module+0x190/0x1d0
__arm64_sys_finit_module+0x20/0x30
invoke_syscall+0x60/0x170
el0_svc_common+0xc8/0x114
do_el0_svc+0x28/0xa0
el0_svc+0x60/0xf8
el0t_64_sync_handler+0x88/0xec
el0t_64_sync+0x1b4/0x1b8
kmemleak: [name:kmemleak&]Object 0xf5ffffe77076b000 (size 32768):
kmemleak: [name:kmemleak&] comm "init", pid 1, jiffies 4294894197
kmemleak: [name:kmemleak&] min_count = 0
kmemleak: [name:kmemleak&] count = 0
kmemleak: [name:kmemleak&] flags = 0x1
kmemleak: [name:kmemleak&] checksum = 0
kmemleak: [name:kmemleak&] backtrace:
module_alloc+0x9c/0x120
move_module+0x34/0x19c
layout_and_allocate+0x1c4/0x288
load_module+0x2c8/0xf00
__se_sys_finit_module+0x190/0x1d0
__arm64_sys_finit_module+0x20/0x30
invoke_syscall+0x60/0x170
el0_svc_common+0xc8/0x114
do_el0_svc+0x28/0xa0
el0_svc+0x60/0xf8
el0t_64_sync_handler+0x88/0xec
el0t_64_sync+0x1b4/0x1b8
Link: https://lkml.kernel.org/r/20220318034051.30687-1-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Cc: Yee Lee <yee.lee@mediatek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-c option has been removed from page_owner_sort.c.
Remove the usage of -c option from Documentation.
This work is coauthored by
Shenghong Han
Yixuan Cao
Chongxi Zhao
Jiajian Ye
Yuhong Feng
Yongqiang Liu
Link: https://lkml.kernel.org/r/20220326085920.1470081-2-zhangyinan2019@email.szu.edu.cn
Signed-off-by: Yinan Zhang <zhangyinan2019@email.szu.edu.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Tang Bin <tangbin@cmss.chinamobile.com>
Cc: Zhenliang Wei <weizhenliang@huawei.com>
Cc: Georgi Djakov <georgi.djakov@linaro.org>
Cc: Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn>
Cc: Jiajian Ye <yejiajian2018@email.szu.edu.cn>
Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Cc: Yuhong Feng <yuhongf@szu.edu.cn>
Cc: Yongqiang Liu <liuyongqiang13@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The -c option is used to cull by stacktrace. Now, --cull option has
been Added in page_owner_sort.c. Culling by stacktrace is one of the
function of "--cull". No need to set an extra parameter. So remove -c
option.
Remove parsing of -c when parse parameter and remove "-c" from usage.
This work is coauthored by
Shenghong Han
Yixuan Cao
Chongxi Zhao
Jiajian Ye
Yuhong Feng
Yongqiang Liu
Link: https://lkml.kernel.org/r/20220326085920.1470081-1-zhangyinan2019@email.szu.edu.cn
Signed-off-by: Yinan Zhang <zhangyinan2019@email.szu.edu.cn>
Cc: Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn>
Cc: Georgi Djakov <georgi.djakov@linaro.org>
Cc: Jiajian Ye <yejiajian2018@email.szu.edu.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Tang Bin <tangbin@cmss.chinamobile.com>
Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Cc: Yongqiang Liu <liuyongqiang13@huawei.com>
Cc: Yuhong Feng <yuhongf@szu.edu.cn>
Cc: Zhenliang Wei <weizhenliang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KASAN changes that added new GFP flags mistakenly updated
__GFP_BITS_SHIFT as the total number of GFP bits instead of as a shift
used to define __GFP_BITS_MASK.
This broke LOCKDEP, as __GFP_BITS_MASK now gets the 25th bit enabled
instead of the 28th for __GFP_NOLOCKDEP.
Update __GFP_BITS_SHIFT to always count KASAN GFP bits.
In the future, we could handle all combinations of KASAN and LOCKDEP to
occupy as few bits as possible. For now, we have enough GFP bits to be
inefficient in this quick fix.
Link: https://lkml.kernel.org/r/462ff52742a1fcc95a69778685737f723ee4dfb3.1648400273.git.andreyknvl@google.com
Fixes: 9353ffa6e9 ("kasan, page_alloc: allow skipping memory init for HW_TAGS")
Fixes: 53ae233c30 ("kasan, page_alloc: allow skipping unpoisoning for HW_TAGS")
Fixes: f49d9c5bb1 ("kasan, mm: only define ___GFP_SKIP_KASAN_POISON with HW_TAGS")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In some cases it appears the invalidation of a hwpoisoned page fails
because the page is still mapped in another process. This can cause a
program to be continuously restarted and die when it page faults on the
page that was not invalidated. Avoid that problem by unmapping the
hwpoisoned page when we find it.
Another issue is that sometimes we end up oopsing in finish_fault, if
the code tries to do something with the now-NULL vmf->page. I did not
hit this error when submitting the previous patch because there are
several opportunities for alloc_set_pte to bail out before accessing
vmf->page, and that apparently happened on those systems, and most of
the time on other systems, too.
However, across several million systems that error does occur a handful
of times a day. It can be avoided by returning VM_FAULT_NOPAGE which
will cause do_read_fault to return before calling finish_fault.
Link: https://lkml.kernel.org/r/20220325161428.5068d97e@imladris.surriel.com
Fixes: e53ac7374e ("mm: invalidate hwpoison page cache page in fault path")
Signed-off-by: Rik van Riel <riel@surriel.com>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Tested-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If the kfence object is allocated to be used for objects vector, then
this slot of the pool eventually being occupied permanently since the
vector is never freed. The solutions could be (1) freeing vector when
the kfence object is freed or (2) allocating all vectors statically.
Since the memory consumption of object vectors is low, it is better to
chose (2) to fix the issue and it is also can reduce overhead of vectors
allocating in the future.
Link: https://lkml.kernel.org/r/20220328132843.16624-1-songmuchun@bytedance.com
Fixes: d3fb45f370 ("mm, kfence: insert KFENCE hooks for SLAB")
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Xiongchun Duan <duanxiongchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The access to mlock_pvec is protected by disabling preemption via
get_cpu_var() or implicit by having preemption disabled by the caller
(in mlock_page_drain() case). This breaks on PREEMPT_RT since
folio_lruvec_lock_irq() acquires a sleeping lock in this section.
Create struct mlock_pvec which consits of the local_lock_t and the
pagevec. Acquire the local_lock() before accessing the per-CPU pagevec.
Replace mlock_page_drain() with a _local() version which is invoked on
the local CPU and acquires the local_lock_t and a _remote() version
which uses the pagevec from a remote CPU which offline.
Link: https://lkml.kernel.org/r/YjizWi9IY0mpvIfb@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Update Documentation/vm/unevictable-lru.rst to reflect the changes made
by the mm/munlock series: keeping an mlock_count instead of page_mlock()
(formerly try_to_munlock()) and munlock_vma_pages_all() etc. Also make
other little updates or cleanups wherever noticed.
But, I apologize, this is already out of date, in that "folio" appears
nowhere: 5.18 will be in a transitional state from "page" to "folio",
and documenting its current mix of the two does not help to understand
"the Unevictable LRU". Should be revisited when naming is more settled.
Link: https://lkml.kernel.org/r/3753962-d491-bf60-f59f-51bfe84fd6a0@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: David Hildenbrand <david@redhat.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike reports that LTP memcg_stat_test usually leads to
memcg_stat_test 3 TINFO: Test unevictable with MAP_LOCKED
memcg_stat_test 3 TINFO: Running memcg_process --mmap-lock1 -s 135168
memcg_stat_test 3 TINFO: Warming up pid: 3460
memcg_stat_test 3 TINFO: Process is still here after warm up: 3460
memcg_stat_test 3 TFAIL: unevictable is 122880, 135168 expected
but may also lead to
memcg_stat_test 4 TINFO: Test unevictable with mlock
memcg_stat_test 4 TINFO: Running memcg_process --mmap-lock2 -s 135168
memcg_stat_test 4 TINFO: Warming up pid: 4271
memcg_stat_test 4 TINFO: Process is still here after warm up: 4271
memcg_stat_test 4 TFAIL: unevictable is 122880, 135168 expected
or both. A wee bit flaky.
follow_page_pte() used to have an lru_add_drain() per each page mlocked,
and the test came to rely on accurate stats. The pagevec to be drained
is different now, but still covered by lru_add_drain(); and, never mind
the test, I believe it's in everyone's interest that a bulk faulting
interface like populate_vma_page_range() or faultin_vma_page_range()
should drain its local pagevecs at the end, to save others sometimes
needing the much more expensive lru_add_drain_all().
This does not absolutely guarantee exact stats - the mlocking task can
be migrated between CPUs as it proceeds - but it's good enough and the
tests pass.
Link: https://lkml.kernel.org/r/47f6d39c-a075-50cb-1cfb-26dd957a48af@google.com
Fixes: b67bf49ce7 ("mm/munlock: delete FOLL_MLOCK and FOLL_POPULATE")
Signed-off-by: Hugh Dickins <hughd@google.com>
Reported-by: Mike Galbraith <efault@gmx.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
After applying the lockdep warning fixes, nilfs_mapping_init() is no
longer used, so delete it.
Link: https://lkml.kernel.org/r/1647867427-30498-4-git-send-email-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hao Sun <sunhao.th@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
During disk space reclamation, nilfs2 still emits the following lockdep
warning due to page/folio operations on shadowed page caches that nilfs2
uses to get a snapshot of DAT file in memory:
WARNING: CPU: 0 PID: 2643 at include/linux/backing-dev.h:272 __folio_mark_dirty+0x645/0x670
...
RIP: 0010:__folio_mark_dirty+0x645/0x670
...
Call Trace:
filemap_dirty_folio+0x74/0xd0
__set_page_dirty_nobuffers+0x85/0xb0
nilfs_copy_dirty_pages+0x288/0x510 [nilfs2]
nilfs_mdt_save_to_shadow_map+0x50/0xe0 [nilfs2]
nilfs_clean_segments+0xee/0x5d0 [nilfs2]
nilfs_ioctl_clean_segments.isra.19+0xb08/0xf40 [nilfs2]
nilfs_ioctl+0xc52/0xfb0 [nilfs2]
__x64_sys_ioctl+0x11d/0x170
This fixes the remaining warning by using inode objects to hold those
page caches.
Link: https://lkml.kernel.org/r/1647867427-30498-3-git-send-email-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hao Sun <sunhao.th@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "nilfs2 lockdep warning fixes".
The first two are to resolve the lockdep warning issue, and the last one
is the accompanying cleanup and low priority.
Based on your comment, this series solves the issue by separating inode
object as needed. Since I was worried about the impact of the object
composition changes, I tested the series carefully not to cause
regressions especially for delicate functions such like disk space
reclamation and snapshots.
This patch (of 3):
If CONFIG_LOCKDEP is enabled, nilfs2 hits lockdep warnings at
inode_to_wb() during page/folio operations for btree nodes:
WARNING: CPU: 0 PID: 6575 at include/linux/backing-dev.h:269 inode_to_wb include/linux/backing-dev.h:269 [inline]
WARNING: CPU: 0 PID: 6575 at include/linux/backing-dev.h:269 folio_account_dirtied mm/page-writeback.c:2460 [inline]
WARNING: CPU: 0 PID: 6575 at include/linux/backing-dev.h:269 __folio_mark_dirty+0xa7c/0xe30 mm/page-writeback.c:2509
Modules linked in:
...
RIP: 0010:inode_to_wb include/linux/backing-dev.h:269 [inline]
RIP: 0010:folio_account_dirtied mm/page-writeback.c:2460 [inline]
RIP: 0010:__folio_mark_dirty+0xa7c/0xe30 mm/page-writeback.c:2509
...
Call Trace:
__set_page_dirty include/linux/pagemap.h:834 [inline]
mark_buffer_dirty+0x4e6/0x650 fs/buffer.c:1145
nilfs_btree_propagate_p fs/nilfs2/btree.c:1889 [inline]
nilfs_btree_propagate+0x4ae/0xea0 fs/nilfs2/btree.c:2085
nilfs_bmap_propagate+0x73/0x170 fs/nilfs2/bmap.c:337
nilfs_collect_dat_data+0x45/0xd0 fs/nilfs2/segment.c:625
nilfs_segctor_apply_buffers+0x14a/0x470 fs/nilfs2/segment.c:1009
nilfs_segctor_scan_file+0x47a/0x700 fs/nilfs2/segment.c:1048
nilfs_segctor_collect_blocks fs/nilfs2/segment.c:1224 [inline]
nilfs_segctor_collect fs/nilfs2/segment.c:1494 [inline]
nilfs_segctor_do_construct+0x14f3/0x6c60 fs/nilfs2/segment.c:2036
nilfs_segctor_construct+0x7a7/0xb30 fs/nilfs2/segment.c:2372
nilfs_segctor_thread_construct fs/nilfs2/segment.c:2480 [inline]
nilfs_segctor_thread+0x3c3/0xf90 fs/nilfs2/segment.c:2563
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
This is because nilfs2 uses two page caches for each inode and
inode->i_mapping never points to one of them, the btree node cache.
This causes inode_to_wb(inode) to refer to a different page cache than
the caller page/folio operations such like __folio_start_writeback(),
__folio_end_writeback(), or __folio_mark_dirty() acquired the lock.
This patch resolves the issue by allocating and using an additional
inode to hold the page cache of btree nodes. The inode is attached
one-to-one to the traditional nilfs2 inode if it requires a block
mapping with b-tree. This setup change is in memory only and does not
affect the disk format.
Link: https://lkml.kernel.org/r/1647867427-30498-1-git-send-email-konishi.ryusuke@gmail.com
Link: https://lkml.kernel.org/r/1647867427-30498-2-git-send-email-konishi.ryusuke@gmail.com
Link: https://lore.kernel.org/r/YXrYvIo8YRnAOJCj@casper.infradead.org
Link: https://lore.kernel.org/r/9a20b33d-b38f-b4a2-4742-c1eb5b8e4d6c@redhat.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: syzbot+0d5b462a6f07447991b3@syzkaller.appspotmail.com
Reported-by: syzbot+34ef28bb2aeb28724aa0@syzkaller.appspotmail.com
Reported-by: Hao Sun <sunhao.th@gmail.com>
Reported-by: David Hildenbrand <david@redhat.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There is a reported crash when mounting ocfs2 with quota enabled.
RIP: 0010:ocfs2_qinfo_lock_res_init+0x44/0x50 [ocfs2]
Call Trace:
ocfs2_local_read_info+0xb9/0x6f0 [ocfs2]
dquot_load_quota_sb+0x216/0x470
dquot_load_quota_inode+0x85/0x100
ocfs2_enable_quotas+0xa0/0x1c0 [ocfs2]
ocfs2_fill_super.cold+0xc8/0x1bf [ocfs2]
mount_bdev+0x185/0x1b0
legacy_get_tree+0x27/0x40
vfs_get_tree+0x25/0xb0
path_mount+0x465/0xac0
__x64_sys_mount+0x103/0x140
It is caused by when initializing dqi_gqlock, the corresponding dqi_type
and dqi_sb are not properly initialized.
This issue is introduced by commit 6c85c2c728, which wants to avoid
accessing uninitialized variables in error cases. So make global quota
info properly initialized.
Link: https://lkml.kernel.org/r/20220323023644.40084-1-joseph.qi@linux.alibaba.com
Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1007141
Fixes: 6c85c2c728 ("ocfs2: quota_local: fix possible uninitialized-variable access in ocfs2_local_read_info()")
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reported-by: Dayvison <sathlerds@gmail.com>
Tested-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit 08095d6310 ("mm: madvise: skip unmapped vma holes
passed to process_madvise") as process_madvise() fails to return the
exact processed bytes in other cases too.
As an example: if process_madvise() hits mlocked pages after processing
some initial bytes passed in [start, end), it just returns EINVAL
although some bytes are processed. Thus making an exception only for
ENOMEM is partially fixing the problem of returning the proper advised
bytes.
Thus revert this patch and return proper bytes advised.
Link: https://lkml.kernel.org/r/e73da1304a88b6a8a11907045117cccf4c2b8374.1648046642.git.quic_charante@quicinc.com
Fixes: 08095d6310 ("mm: madvise: skip unmapped vma holes passed to process_madvise")
Signed-off-by: Charan Teja Kalla <quic_charante@quicinc.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
While btrfs doesn't use large folios yet, this should have been changed
as part of the conversion from invalidatepage to invalidate_folio.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
We've already done the work of block_dirty_folio() here, leaving
only the work that needs to be done by filemap_dirty_folio().
This was a misconversion where I misread __set_page_dirty_nobuffers()
as __set_page_dirty_buffers().
Fixes: e621900ad2 ("fs: Convert __set_page_dirty_buffers to block_dirty_folio")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
It's slightly more efficient to go directly from the mapping to the
superblock than to go from the page. Now that these routines have
the mapping passed to them, there's no reason not to use it.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
I got the return value wrong. Very little checks the return value
from set_page_dirty(), so nobody noticed during testing.
Fixes: 4f5e34f713 ("f2fs: Convert f2fs_set_data_page_dirty to f2fs_dirty_data_folio")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
This should use the new folio_buffers() instead of page_has_buffers().
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
