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authorVivek Goyal <vgoyal@redhat.com>2018-05-11 11:49:28 -0400
committerMiklos Szeredi <mszeredi@redhat.com>2018-07-20 09:56:08 +0200
commit2002df85367ca69961d39020f56d3d727897be01 (patch)
treedac68a1f359f9da75b69af772c217e323685fa26 /fs/overlayfs/overlayfs.h
parent44d5bf109a73f4162d97ab714770fdf76a8dc685 (diff)
ovl: Add helper ovl_already_copied_up()
There are couple of places where we need to know if file is already copied up (in lockless manner). Right now its open coded and there are only two conditions to check. Soon this patch series will introduce another condition to check and Amir wants to introduce one more. So introduce a helper instead to check this so that code is easier to read. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs/overlayfs.h')
-rw-r--r--fs/overlayfs/overlayfs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index c0318b5a50f0..206e588df095 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -238,6 +238,7 @@ bool ovl_is_whiteout(struct dentry *dentry);
struct file *ovl_path_open(struct path *path, int flags);
int ovl_copy_up_start(struct dentry *dentry);
void ovl_copy_up_end(struct dentry *dentry);
+bool ovl_already_copied_up(struct dentry *dentry);
bool ovl_check_origin_xattr(struct dentry *dentry);
bool ovl_check_dir_xattr(struct dentry *dentry, const char *name);
int ovl_check_setxattr(struct dentry *dentry, struct dentry *upperdentry,