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[02/18] fs_context: fix shrinker leak in sget_fc()

Message ID 20180708210154.10423-3-ebiggers3@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Eric Biggers July 8, 2018, 9:01 p.m. UTC 
From: Eric Biggers <ebiggers@google.com>

alloc_super() now preallocates the shrinker, so sget_fc() must only
register the pre-allocated shrinker, not allocate one again.

Fixes: 8a2e54b8af88 ("vfs: Implement a filesystem superblock creation/configuration context")
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 fs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/fs/super.c b/fs/super.c
index e6052a72f3558..a992dd0f27670 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -559,7 +559,7 @@  struct super_block *sget_fc(struct fs_context *fc,
 	hlist_add_head(&s->s_instances, &s->s_type->fs_supers);
 	spin_unlock(&sb_lock);
 	get_filesystem(s->s_type);
-	register_shrinker(&s->s_shrink);
+	register_shrinker_prepared(&s->s_shrink);
 	return s;
 }
 EXPORT_SYMBOL(sget_fc);