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bcachefs: unregister_shrinker() now safe on not-registered shrinker 

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2023-06-26 23:31:49 -04:00
parent 0ce4e0e759
commit b3591acc3b
2 changed files with 2 additions and 4 deletions
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3
fs/bcachefs/btree_cache.c
View File

@ -398,8 +398,7 @@ void bch2_fs_btree_cache_exit(struct bch_fs *c)
struct btree *b;
unsigned i, flags;
if (bc->shrink.list.next)
unregister_shrinker(&bc->shrink);
unregister_shrinker(&bc->shrink);
/* vfree() can allocate memory: */
flags = memalloc_nofs_save();

3
fs/bcachefs/btree_key_cache.c
View File

@ -955,8 +955,7 @@ void bch2_fs_btree_key_cache_exit(struct btree_key_cache *bc)
int cpu;
#endif
if (bc->shrink.list.next)
unregister_shrinker(&bc->shrink);
unregister_shrinker(&bc->shrink);
mutex_lock(&bc->lock);