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| author | Chengguang Xu <cgxu519@mykernel.net> | 2020-04-24 04:55:17 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2020-05-13 11:11:24 +0200 |
| commit | c21c839b8448dd4b1e37ffc1bde928f57d34c0db (patch) | |
| tree | 72887c93eebea1c78fbd61d032cbc06191d082f4 /fs/overlayfs/util.c | |
| parent | ovl: inherit SB_NOSEC flag from upperdir (diff) | |
| download | linux-c21c839b8448dd4b1e37ffc1bde928f57d34c0db.tar.xz linux-c21c839b8448dd4b1e37ffc1bde928f57d34c0db.zip | |
ovl: whiteout inode sharing
Share inode with different whiteout files for saving inode and speeding up
delete operation.
If EMLINK is encountered when linking a shared whiteout, create a new one.
In case of any other error, disable sharing for this super block.
Note: ofs->whiteout is protected by inode lock on workdir.
Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs/util.c')
| -rw-r--r-- | fs/overlayfs/util.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c index 36b60788ee47..01755bc186c9 100644 --- a/fs/overlayfs/util.c +++ b/fs/overlayfs/util.c @@ -707,7 +707,8 @@ static void ovl_cleanup_index(struct dentry *dentry) index = NULL; } else if (ovl_index_all(dentry->d_sb)) { /* Whiteout orphan index to block future open by handle */ - err = ovl_cleanup_and_whiteout(indexdir, dir, index); + err = ovl_cleanup_and_whiteout(OVL_FS(dentry->d_sb), + dir, index); } else { /* Cleanup orphan index entries */ err = ovl_cleanup(dir, index); |