Andreas Gruenbacher 8b2ea9a3a1 gfs2: Disable page faults during lockless buffered reads ... [ Upstream commit 52f3f033a5 ] During lockless buffered reads, filemap_read() holds page cache page references while trying to copy data to the user-space buffer. The calling process isn't holding the inode glock, but the page references it holds prevent those pages from being removed from the page cache, and that prevents the underlying inode glock from being moved to another node. Thus, we can end up in the same kinds of distributed deadlock situations as with normal (non-lockless) buffered reads. Fix that by disabling page faults during lockless reads as well. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-05-25 09:57:24 +02:00
..
acl.c	vfs: add rcu argument to ->get_acl() callback	2021-08-18 22:08:24 +02:00
acl.h	vfs: add rcu argument to ->get_acl() callback	2021-08-18 22:08:24 +02:00
aops.c	gfs2: Don't release and reacquire local statfs bh	2021-08-20 09:03:46 -05:00
aops.h	gfs2: mark stuffed_readpage static	2019-07-03 14:45:18 +02:00
bmap.c	gfs2: Fix filesystem block deallocation for short writes	2022-05-18 10:26:51 +02:00
bmap.h	gfs2: Clean up gfs2_unstuff_dinode	2021-06-29 10:56:51 +02:00
dentry.c	gfs2: untangle the logic in gfs2_drevalidate	2019-09-03 09:42:41 +02:00
dir.c	gfs2: Clean up gfs2_unstuff_dinode	2021-06-29 10:56:51 +02:00
dir.h	gfs2: Delete an unnecessary check before brelse()	2019-09-04 20:22:17 +02:00
export.c	gfs2: Minor gfs2_lookup_by_inum cleanup	2020-06-05 20:19:21 +02:00
file.c	gfs2: Disable page faults during lockless buffered reads	2022-05-25 09:57:24 +02:00
gfs2.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
glock.c	gfs2: Introduce flag for glock holder auto-demotion	2022-05-01 17:22:30 +02:00
glock.h	gfs2: Introduce flag for glock holder auto-demotion	2022-05-01 17:22:30 +02:00
glops.c	gfs2: Delay withdraw from atomic context	2021-08-20 09:03:46 -05:00
glops.h	gfs2: Split up gfs2_meta_sync into inode and rgrp versions	2020-10-29 22:16:46 +01:00
incore.h	gfs2: Eliminate ip->i_gh	2022-05-01 17:22:30 +02:00
inode.c	gfs2: gfs2_setattr_size error path fix	2022-04-08 14:24:10 +02:00
inode.h	Changes in gfs2:	2021-04-29 10:33:35 -07:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
lock_dlm.c	gfs2: Don't call dlm after protocol is unmounted	2021-08-20 09:03:46 -05:00
log.c	gfs2: tiny cleanup in gfs2_log_reserve	2021-08-19 12:31:17 -05:00
log.h	gfs2: Clean up revokes on normal withdraws	2021-05-20 13:31:37 +02:00
lops.c	gfs2: be more verbose replaying invalid rgrp blocks	2021-08-19 12:31:17 -05:00
lops.h	gfs2: Clean up revokes on normal withdraws	2021-05-20 13:31:37 +02:00
main.c	gfs2: amend SLAB_RECLAIM_ACCOUNT on gfs2 related slab cache	2021-01-22 12:19:17 -05:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
meta_io.c	gfs2: don't stop reads while withdraw in progress	2021-08-20 09:03:46 -05:00
meta_io.h	gfs2: Turn gfs2_meta_indirect_buffer into gfs2_meta_buffer	2021-04-03 21:38:12 +02:00
ops_fstype.c	gfs2: Mark journal inodes as "don't cache"	2021-08-20 09:03:46 -05:00
quota.c	gfs2: Clean up gfs2_unstuff_dinode	2021-06-29 10:56:51 +02:00
quota.h	gfs2: move privileged user check to gfs2_quota_lock_check	2020-05-08 18:47:58 +02:00
recovery.c	gfs2: Fix fall-through warnings for Clang	2021-04-20 22:38:21 +02:00
recovery.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
rgrp.c	gfs2: assign rgrp glock before compute_bitstructs	2022-04-27 14:38:51 +02:00
rgrp.h	gfs2: gfs2_setattr_size error path fix	2022-04-08 14:24:10 +02:00
super.c	gfs2: gfs2_setattr_size error path fix	2022-04-08 14:24:10 +02:00
super.h	gfs2: Don't release and reacquire local statfs bh	2021-08-20 09:03:46 -05:00
sys.c	gfs2: Add new sysfs file for gfs2 status	2021-04-08 15:07:21 +02:00
sys.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00
trace_gfs2.h	gfs2: Add per-reservation reserved block accounting	2021-02-17 19:30:26 +01:00
trans.c	gfs2: fix use-after-free in trans_drain	2021-03-07 17:04:55 +01:00
trans.h	Merge branches 'rgrp-glock-sharing' and 'gfs2-revoke' from https://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git	2021-02-23 18:54:22 +01:00
util.c	gfs2: Mark journal inodes as "don't cache"	2021-08-20 09:03:46 -05:00
util.h	gfs2: don't stop reads while withdraw in progress	2021-08-20 09:03:46 -05:00
xattr.c	gfs2: Fix a number of kernel-doc warnings	2021-04-09 22:14:13 +02:00
xattr.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398	2019-06-05 17:37:12 +02:00