A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 11:11:45 -04:00
Code Issues Projects Releases Packages Wiki Activity

z3fold: fix spinlock unlocking in page reclaim

Browse source 
Commmit 5a27aa8220 ("z3fold: add kref refcounting") introduced a bug
in z3fold_reclaim_page() with function exit that may leave pool->lock
spinlock held.  Here comes the trivial fix.

Fixes: 5a27aa8220 ("z3fold: add kref refcounting")
Link: http://lkml.kernel.org/r/[email protected]
Reported-by: Alexey Khoroshilov <[email protected]>
Signed-off-by: Vitaly Wool <[email protected]>
Cc: Dan Streetman <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Vitaly Wool 2017-03-16 16:40:19 -07:00 • committed by Linus Torvalds
commit 271df90e4e
1 changed files with 1 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

1
mm/z3fold.c
View file

@ -667,6 +667,7 @@ next:
z3fold_page_unlock(zhdr);
spin_lock(&pool->lock);
if (kref_put(&zhdr->refcount, release_z3fold_page)) {
spin_unlock(&pool->lock);
atomic64_dec(&pool->pages_nr);
return 0;
}