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linux/fs/gfs2
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Andreas Gruenbacher 9e73330f29 gfs2: Try harder to delete inodes locally 
When an inode's link count drops to zero and the inode is cached on
other nodes, the current behavior of gfs2 is to immediately give up and
to rely on the other node(s) to delete the inode if there is iopen glock
contention.  This leads to resource group glock bouncing and the loss of
caching.  With the previous patches in place, we can fix that by not
giving up immediately.

When the inode is still open on other nodes, those nodes won't be able
to evict the inode and give up the iopen glock.  In that case, our lock
conversion request will time out.  The unlink system call will block for
the duration of the iopen lock conversion request.  We're also holding
the inode glock in EX mode for an extended duration, so other nodes
won't be able to make progress on the inode, either.

This is worse than what we had before, but we can prevent other nodes
from getting stuck by aborting our iopen locking request if there is
contention on the inode glock.  This will the the subject of a future
patch.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
2020-06-05 20:19:21 +02:00
..
acl.c gfs2: Change inode qa_data to allow multiple users 2020-03-27 14:08:04 -05:00
acl.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
aops.c gfs2: don't allow releasepage to free bd still used for revokes 2020-02-27 07:53:18 -06:00
aops.h gfs2: mark stuffed_readpage static 2019-07-03 14:45:18 +02:00
bmap.c gfs2: Another gfs2_walk_metadata fix 2020-05-08 15:15:12 +02:00
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 gfs2: leaf_dealloc needs to allocate one more revoke 2020-02-27 07:53:18 -06:00
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: Remove unnecessary gfs2_qa_{get,put} pairs 2020-03-27 14:08:05 -05:00
gfs2.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
glock.c gfs2: Give up the iopen glock on contention 2020-06-05 20:19:21 +02:00
glock.h gfs2: Turn gl_delete into a delayed work 2020-06-05 20:19:21 +02:00
glops.c gfs2: Turn gl_delete into a delayed work 2020-06-05 20:19:21 +02:00
glops.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
incore.h gfs2: Give up the iopen glock on contention 2020-06-05 20:19:21 +02:00
inode.c gfs2: Turn gl_delete into a delayed work 2020-06-05 20:19:21 +02:00
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: Grab glock reference sooner in gfs2_add_revoke 2020-05-08 18:49:04 +02:00
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: More gfs2_find_jhead fixes 2020-05-08 15:15:12 +02:00
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: fix withdraw sequence deadlock 2020-05-06 21:25:26 +02:00
meta_io.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
ops_fstype.c We've got a lot of patches (39) for this merge window. Most of these patches 2020-03-31 14:16:03 -07:00
quota.c gfs2: don't call quota_unhold if quotas are not locked 2020-05-08 18:49:04 +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: change from write to read lock for sd_log_flush_lock in journal replay 2020-03-27 14:08:05 -05:00
recovery.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00
rgrp.c gfs2: Turn gl_delete into a delayed work 2020-06-05 20:19:21 +02:00
rgrp.h gfs2: Split gfs2_rsqa_delete into gfs2_rs_delete and gfs2_qa_put 2020-03-27 14:08:04 -05:00
super.c gfs2: Try harder to delete inodes locally 2020-06-05 20:19:21 +02:00
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: Fix BUG during unmount after file system withdraw 2020-05-08 15:13:27 +02:00
util.h gfs2: flesh out delayed withdraw for gfs2_log_flush 2020-02-27 07:53:18 -06:00
xattr.c gfs2: Change inode qa_data to allow multiple users 2020-03-27 14:08:04 -05:00
xattr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 398 2019-06-05 17:37:12 +02:00