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msm-4.14/fs/ext4
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Matthew Bobrowski 47acc10500 ext4: update direct I/O read lock pattern for IOCB_NOWAIT 
[ Upstream commit 548feebec7e93e58b647dba70b3303dcb569c914 ]

This patch updates the lock pattern in ext4_direct_IO_read() to not
block on inode lock in cases of IOCB_NOWAIT direct I/O reads. The
locking condition implemented here is similar to that of 942491c9e6d6
("xfs: fix AIM7 regression").

Fixes: 16c54688592c ("ext4: Allow parallel DIO reads")
Signed-off-by: Matthew Bobrowski <mbobrowski@mbobrowski.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/c5d5e759f91747359fbd2c6f9a36240cf75ad79f.1572949325.git.mbobrowski@mbobrowski.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-04 13:59:40 +01:00
..
acl.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
acl.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
balloc.c
ext4: check for allocation block validity with block group locked
2018-08-03 07:50:43 +02:00
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
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dir.c
ext4: check for directory entries too close to block end
2019-12-31 12:38:00 +01:00
ext4_extents.h
ext4: verify the depth of extent tree in ext4_find_extent()
2018-07-11 16:29:17 +02:00
ext4_jbd2.c
ext4: shutdown should not prevent get_write_access
2018-04-24 09:36:30 +02:00
ext4_jbd2.h
ext4: use jbd2_inode dirty range scoping
2019-07-31 07:28:47 +02:00
ext4.h
ext4: add mask of ext4 flags to swap
2019-03-23 14:35:22 +01:00
extents_status.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
extents_status.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
extents.c
ext4: fix warning inside ext4_convert_unwritten_extents_endio
2019-10-05 12:48:11 +02:00
file.c
ext4: enforce the immutable flag on open files
2019-07-31 07:28:47 +02:00
fsmap.c
ext4: fix off-by-one fsmap error on 1k block filesystems
2017-06-23 00:58:57 -04:00
fsmap.h
ext4: support GETFSMAP ioctls
2017-04-30 00:36:53 -04:00
fsync.c
Revert "ext4: use ext4_write_inode() when fsyncing w/o a journal"
2019-02-15 08:09:13 +01:00
hash.c
ext4: remove useless test and assignment in strtohash functions
2017-08-24 15:11:34 -04:00
ialloc.c
ext4: fix check to prevent initializing reserved inodes
2018-08-03 07:50:43 +02:00
indirect.c
ext4: cleanup bh release code in ext4_ind_remove_space()
2019-04-05 22:31:24 +02:00
inline.c
ext4: fix a potential fiemap/page fault deadlock w/ inline_data
2019-01-16 22:07:12 +01:00
inode.c
ext4: update direct I/O read lock pattern for IOCB_NOWAIT
2020-01-04 13:59:40 +01:00
ioctl.c
ext4: don't allow any modifications to an immutable file
2019-07-31 07:28:47 +02:00
Kconfig
…
Makefile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mballoc.c
ext4: make sanity check in mballoc more strict
2019-05-21 18:50:18 +02:00
mballoc.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
migrate.c
ext4: add ext4_sb_bread() to disambiguate ENOMEM cases
2019-01-09 17:14:49 +01:00
mmp.c
ext4: don't mark mmp buffer head dirty
2018-09-29 03:06:06 -07:00
move_extent.c
ext4: use jbd2_inode dirty range scoping
2019-07-31 07:28:47 +02:00
namei.c
ext4: fix ext4_empty_dir() for directories with holes
2019-12-31 12:37:59 +01:00
page-io.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
readpage.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
resize.c
ext4: avoid drop reference to iloc.bh twice
2019-05-21 18:50:18 +02:00
super.c
ext4: add more paranoia checking in ext4_expand_extra_isize handling
2019-12-05 15:38:19 +01:00
symlink.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
sysfs.c
ext4: sysfs: print ext4_super_block fields as little-endian
2018-09-05 09:26:36 +02:00
truncate.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xattr_security.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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
xattr.c
ext4: ignore e_value_offs for xattrs with value-in-ea-inode
2019-05-21 18:50:18 +02:00
xattr.h
ext4: add extra checks to ext4_xattr_block_get()
2018-04-24 09:36:31 +02:00