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authorKent Overstreet <kent.overstreet@gmail.com>2022-06-18 19:55:32 -0400
committerKent Overstreet <kent.overstreet@linux.dev>2023-10-22 17:09:34 -0400
commita3d7afa5c1b62140168982747fd15c1999d991f4 (patch)
treed1bd1ea4f390c17225ff423a5ef99450f8e177a3 /fs/bcachefs/sysfs.c
parent23189da9eb6b34fc1ceb077edb32e308d0ad6760 (diff)
bcachefs: Always use percpu_ref_tryget_live() on c->writes
If we're trying to get a ref and the refcount has been killed, it means we're doing an emergency shutdown - we always want tryget_live(). Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Diffstat (limited to 'fs/bcachefs/sysfs.c')
-rw-r--r--fs/bcachefs/sysfs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/bcachefs/sysfs.c b/fs/bcachefs/sysfs.c
index 173289c34de0..4e2b6285cf3a 100644
--- a/fs/bcachefs/sysfs.c
+++ b/fs/bcachefs/sysfs.c
@@ -676,7 +676,7 @@ STORE(bch2_fs_opts_dir)
* We don't need to take c->writes for correctness, but it eliminates an
* unsightly error message in the dmesg log when we're RO:
*/
- if (unlikely(!percpu_ref_tryget(&c->writes)))
+ if (unlikely(!percpu_ref_tryget_live(&c->writes)))
return -EROFS;
tmp = kstrdup(buf, GFP_KERNEL);