linux/fs/gfs2
Bob Peterson df5db5f9ee gfs2: Don't demote a glock until its revokes are written
Before this patch, run_queue would demote glocks based on whether
there are any more holders. But if the glock has pending revokes that
haven't been written to the media, giving up the glock might end in
file system corruption if the revokes never get written due to
io errors, node crashes and fences, etc. In that case, another node
will replay the metadata blocks associated with the glock, but
because the revoke was never written, it could replay that block
even though the glock had since been granted to another node who
might have made changes.

This patch changes the logic in run_queue so that it never demotes
a glock until its count of pending revokes reaches zero.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
2020-02-27 07:53:18 -06:00
..
acl.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
acl.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
aops.c gfs2: minor cleanup: remove unneeded variable ret in gfs2_jdata_writepage 2020-01-08 10:39:57 -06:00
aops.h gfs2: mark stuffed_readpage static 2019-07-03 14:45:18 +02:00
bmap.c GFS2 changes for this merge window: 2019-12-05 13:20:11 -08:00
bmap.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
dentry.c gfs2: untangle the logic in gfs2_drevalidate 2019-09-03 09:42:41 +02:00
dir.c fs/gfs2: remove unused IS_DINODE and IS_LEAF macros 2020-01-21 11:19:38 +01:00
dir.h gfs2: Delete an unnecessary check before brelse() 2019-09-04 20:22:17 +02:00
export.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
file.c gfs2: fix O_SYNC write handling 2020-02-06 18:49:41 +01:00
gfs2.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
glock.c gfs2: Don't demote a glock until its revokes are written 2020-02-27 07:53:18 -06:00
glock.h gfs2: Use async glocks for rename 2019-09-04 20:22:17 +02:00
glops.c gfs2: Do log_flush in gfs2_ail_empty_gl even if ail list is empty 2020-02-27 07:53:18 -06:00
glops.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
incore.h gfs2: Force withdraw to replay journals and wait for it to finish 2020-02-27 07:53:12 -06:00
inode.c gfs2: Avoid access time thrashing in gfs2_inode_lookup 2020-01-15 15:20:07 +01:00
inode.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
lock_dlm.c gfs2: Force withdraw to replay journals and wait for it to finish 2020-02-27 07:53:12 -06:00
log.c gfs2: drain the ail2 list after io errors 2020-02-27 07:53:18 -06:00
log.h gfs2: Do log_flush in gfs2_ail_empty_gl even if ail list is empty 2020-02-27 07:53:18 -06:00
lops.c gfs2: Prepare to withdraw as soon as an IO error occurs in log write 2020-02-27 07:53:18 -06:00
lops.h gfs2: Remove active journal side effect from gfs2_write_log_header 2019-11-12 15:17:53 +01:00
main.c SPDX update for 5.2-rc4 2019-06-08 12:52:42 -07:00
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: Force withdraw to replay journals and wait for it to finish 2020-02-27 07:53:12 -06:00
meta_io.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
ops_fstype.c gfs2: Add verbose option to check_journal_clean 2020-02-27 07:53:17 -06:00
quota.c gfs2: Force withdraw to replay journals and wait for it to finish 2020-02-27 07:53:12 -06:00
quota.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
recovery.c gfs2: Ignore dlm recovery requests if gfs2 is withdrawn 2020-02-10 07:39:50 -06:00
recovery.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
rgrp.c gfs2: Rework how rgrp buffer_heads are managed 2020-02-10 07:39:48 -06:00
rgrp.h gfs2: Rework how rgrp buffer_heads are managed 2020-02-10 07:39:48 -06:00
super.c gfs2: Force withdraw to replay journals and wait for it to finish 2020-02-27 07:53:12 -06:00
super.h gfs2: Force withdraw to replay journals and wait for it to finish 2020-02-27 07:53:12 -06:00
sys.c gfs2: Force withdraw to replay journals and wait for it to finish 2020-02-27 07:53:12 -06:00
sys.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
trace_gfs2.h gfs2: eliminate rs_inum and reduce the size of gfs2 inodes 2018-06-21 07:39:31 -05:00
trans.c gfs2: drain the ail2 list after io errors 2020-02-27 07:53:18 -06:00
trans.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
util.c gfs2: Add verbose option to check_journal_clean 2020-02-27 07:53:17 -06:00
util.h gfs2: Add verbose option to check_journal_clean 2020-02-27 07:53:17 -06:00
xattr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
xattr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00