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| author | Miklos Szeredi <mszeredi@suse.cz> | 2014-11-20 16:40:01 +0100 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2014-11-20 16:40:01 +0100 |
| commit | 71d509280f7e92eb60ae6b7c78c20afafff060c7 (patch) | |
| tree | c241d261feb9331eaee8dd1137884e86d2c3aae9 /fs | |
| parent | 91c77947133f7aef851b625701e182d3f99d14a9 (diff) | |
| download | linux-71d509280f7e92eb60ae6b7c78c20afafff060c7.tar.gz linux-71d509280f7e92eb60ae6b7c78c20afafff060c7.tar.bz2 linux-71d509280f7e92eb60ae6b7c78c20afafff060c7.zip | |
ovl: use lockless_dereference() for upperdentry
Don't open code lockless_dereference() in ovl_upperdentry_dereference().
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/overlayfs/super.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c index eee7a62e1c0e..f16d318b71f8 100644 --- a/fs/overlayfs/super.c +++ b/fs/overlayfs/super.c @@ -84,12 +84,7 @@ enum ovl_path_type ovl_path_type(struct dentry *dentry) static struct dentry *ovl_upperdentry_dereference(struct ovl_entry *oe) { - struct dentry *upperdentry = ACCESS_ONCE(oe->__upperdentry); - /* - * Make sure to order reads to upperdentry wrt ovl_dentry_update() - */ - smp_read_barrier_depends(); - return upperdentry; + return lockless_dereference(oe->__upperdentry); } void ovl_path_upper(struct dentry *dentry, struct path *path) |