[PATCH 3/5] f2fs: cache NULL when both default_acl and acl are NULL

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default_acl and acl of newly created inode will be initiated
as ACL_NOT_CACHED in vfs function inode_init_always() and later
will be updated by calling xxx_init_acl() in specific filesystems.
Howerver, when default_acl and acl are NULL then they keep the value
of ACL_NOT_CACHED, this patch tries to cache NULL for acl/default_acl
in this case.

Signed-off-by: Chengguang Xu <cgxu519@xxxxxxx>
---
 fs/f2fs/acl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c
index 111824199a88..97ed555316be 100644
--- a/fs/f2fs/acl.c
+++ b/fs/f2fs/acl.c
@@ -401,6 +401,8 @@ int f2fs_init_acl(struct inode *inode, struct inode *dir, struct page *ipage,
 					       ipage);
 		posix_acl_release(acl);
 	}
+	if (!default_acl && !acl)
+		cache_no_acl(inode);
 
 	return error;
 }
-- 
2.17.1




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