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linux-stable/fs/ext4
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Ritesh Harjani 626b035b81 ext4: don't set dioread_nolock by default for blocksize < pagesize 
Currently on calling echo 3 > drop_caches on host machine, we see
FS corruption in the guest. This happens on Power machine where
blocksize < pagesize.

So as a temporary workaound don't enable dioread_nolock by default
for blocksize < pagesize until we identify the root cause.

Also emit a warning msg in case if this mount option is manually
enabled for blocksize < pagesize.

Reported-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/20200327200744.12473-1-riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-03-28 23:11:04 -04:00
..
acl.c ext4: compare old and new mode before setting update_mode flag 2018-12-10 00:22:38 -05:00
acl.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
balloc.c ext4: fix potential race between online resizing and write operations 2020-02-21 00:37:09 -05:00
bitmap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
block_validity.c ext4: add cond_resched() to ext4_protect_reserved_inode 2020-02-13 11:56:26 -05:00
dir.c ext4: use flexible-array member in struct fname 2020-03-14 14:43:13 -04:00
ext4.h ext4: remove EXT4_EOFBLOCKS_FL and associated code 2020-03-05 15:55:30 -05:00
ext4_extents.h ext4: make some functions static in extents.c 2020-01-17 16:24:54 -05:00
ext4_jbd2.c ext4: force buffer up-to-date while marking it dirty 2020-03-05 15:35:39 -05:00
ext4_jbd2.h ext4: disable dioread_nolock whenever delayed allocation is disabled 2020-03-26 10:57:42 -04:00
extents.c ext4: remove map_from_cluster from ext4_ext_map_blocks 2020-03-14 14:43:14 -04:00
extents_status.c ext4: use percpu_counters for extent_status cache hits/misses 2019-08-28 11:19:23 -04:00
extents_status.h ext4: fix extent_status trace points 2020-01-25 02:03:03 -05:00
file.c ext4: start to support iopoll method 2020-03-05 15:40:15 -05:00
fsmap.c ext4: fix miscellaneous sparse warnings 2019-05-12 04:49:47 -04:00
fsmap.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
fsync.c ext4: update ext4_sync_file() to not use __generic_file_fsync() 2019-11-05 11:31:40 -05:00
hash.c ext4: fix kernel oops caused by spurious casefold flag 2019-09-03 01:43:17 -04:00
ialloc.c ext4: avoid ENOSPC when avoiding to reuse recently deleted inodes 2020-03-26 10:55:00 -04:00
indirect.c ext4: remove ext4_{ind,ext}_calc_metadata_amount() 2020-01-17 16:24:54 -05:00
inline.c ext4: move ext4_fiemap to use iomap framework 2020-03-14 14:43:13 -04:00
inode-test.c kunit: allow kunit tests to be loaded as a module 2020-01-09 16:42:29 -07:00
inode.c ext4: make ext4_ind_map_blocks work with fiemap 2020-03-14 14:43:12 -04:00
ioctl.c ext4: remove EXT4_EOFBLOCKS_FL and associated code 2020-03-05 15:55:30 -05:00
Kconfig This merge window, we've added some performance improvements in how we 2020-01-30 15:17:05 -08:00
Makefile kunit: allow kunit tests to be loaded as a module 2020-01-09 16:42:29 -07:00
mballoc.c ext4: mark block bitmap corrupted when found instead of BUGON 2020-03-14 14:43:13 -04:00
mballoc.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
migrate.c ext4: fix race between writepages and enabling EXT4_EXTENTS_FL 2020-02-21 19:32:07 -05:00
mmp.c ext4: don't assume that mmp_nodename/bdevname have NUL 2020-02-13 11:53:10 -05:00
move_extent.c ext4: use jbd2_inode dirty range scoping 2019-06-20 17:26:26 -04:00
namei.c ext4: use flexible-array members in struct dx_node and struct dx_root 2020-03-05 20:25:05 -05:00
page-io.c ext4: fix deadlock allocating crypto bounce page from mempool 2020-01-17 16:24:54 -05:00
readpage.c ext4: remove unneeded check for error allocating bio_post_read_ctx 2020-01-17 16:24:54 -05:00
resize.c ext4: fix potential race between s_flex_groups online resizing and access 2020-02-21 19:31:46 -05:00
super.c ext4: don't set dioread_nolock by default for blocksize < pagesize 2020-03-28 23:11:04 -04:00
symlink.c ext4: switch to fscrypt_get_symlink() 2018-01-11 22:10:40 -05:00
sysfs.c ext4: export information about first/last errors via /sys/fs/ext4/<dev> 2019-12-26 11:29:10 -05:00
truncate.h ext4: handle layout changes to pinned DAX mappings 2018-07-29 17:00:22 -04:00
verity.c fs-verity: implement readahead of Merkle tree pages 2020-01-14 13:27:32 -08:00
xattr.c ext4: drop ext4_kvmalloc() 2020-01-17 16:24:55 -05:00
xattr.h ext4: use flexible-array member for xattr structs 2020-03-14 14:43:13 -04:00
xattr_security.c ext4: use XATTR_CREATE in ext4_initxattrs() 2018-05-10 11:52:14 -04:00
xattr_trusted.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr_user.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00