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authorMiklos Szeredi <mszeredi@redhat.com>2018-04-12 12:04:50 +0200
committerMiklos Szeredi <mszeredi@redhat.com>2018-04-12 12:04:50 +0200
commit8f35cf51cd24a08e3d5b97e7253c93a5c90a4c1e (patch)
tree481dfd16bcea896eef93a21d2443d9cf8c7379c7
parent3a291774d17e096950854506d8869dfe950ec932 (diff)
ovl: cleanup ovl_update_time()
No need to mess with an alias, the upperdentry can be retrieved directly from the overlay inode. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
-rw-r--r--fs/overlayfs/inode.c28
1 files changed, 11 insertions, 17 deletions
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index b3be0cfd4c92..29069f29b3a6 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -380,24 +380,18 @@ int ovl_open_maybe_copy_up(struct dentry *dentry, unsigned int file_flags)
int ovl_update_time(struct inode *inode, struct timespec *ts, int flags)
{
- struct dentry *alias;
- struct path upperpath;
-
- if (!(flags & S_ATIME))
- return 0;
-
- alias = d_find_any_alias(inode);
- if (!alias)
- return 0;
-
- ovl_path_upper(alias, &upperpath);
- if (upperpath.dentry) {
- touch_atime(&upperpath);
- inode->i_atime = d_inode(upperpath.dentry)->i_atime;
+ if (flags & S_ATIME) {
+ struct ovl_fs *ofs = inode->i_sb->s_fs_info;
+ struct path upperpath = {
+ .mnt = ofs->upper_mnt,
+ .dentry = ovl_upperdentry_dereference(OVL_I(inode)),
+ };
+
+ if (upperpath.dentry) {
+ touch_atime(&upperpath);
+ inode->i_atime = d_inode(upperpath.dentry)->i_atime;
+ }
}
-
- dput(alias);
-
return 0;
}