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| author |   Miklos Szeredi <mszeredi@redhat.com> | 2017-07-04 22:03:18 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2017-07-04 22:03:18 +0200 |
| commit | 55acc6618259c8ff0a400a131f0f4b613e96010a (patch) | |
| tree | 82f73eccca8d417ec8c77ad1b02dd28748c5c456 /fs/overlayfs/ovl_entry.h | |
| parent | ovl: use struct copy_up_ctx as function argument (diff) | |
| download | linux-dev-55acc6618259c8ff0a400a131f0f4b613e96010a.tar.xz linux-dev-55acc6618259c8ff0a400a131f0f4b613e96010a.zip | |
ovl: add flag for upper in ovl_entry
For rename, we need to ensure that an upper alias exists for hard links
before attempting the operation. Introduce a flag in ovl_entry to track
the state of the upper alias.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs/ovl_entry.h')
| -rw-r--r-- | fs/overlayfs/ovl_entry.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/overlayfs/ovl_entry.h b/fs/overlayfs/ovl_entry.h index 9642ec64467b..878a750986dd 100644 --- a/fs/overlayfs/ovl_entry.h +++ b/fs/overlayfs/ovl_entry.h @@ -42,7 +42,10 @@ struct ovl_fs { /* private information held for every overlayfs dentry */ struct ovl_entry { union { - bool opaque; + struct { + unsigned long has_upper; + bool opaque; + }; struct rcu_head rcu; }; unsigned numlower; |