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authorChengguang Xu <cgxu519@mykernel.net>2020-04-24 10:55:17 +0800
committerMiklos Szeredi <mszeredi@redhat.com>2020-05-13 11:11:24 +0200
commitc21c839b8448dd4b1e37ffc1bde928f57d34c0db (patch)
tree72887c93eebea1c78fbd61d032cbc06191d082f4 /fs/overlayfs/readdir.c
parent654255fa205cb2b010e9abb34b0c8afcca9c78c7 (diff)
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/readdir.c')
-rw-r--r--fs/overlayfs/readdir.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/overlayfs/readdir.c b/fs/overlayfs/readdir.c
index 20f5310d3ee4..a10b21b562ad 100644
--- a/fs/overlayfs/readdir.c
+++ b/fs/overlayfs/readdir.c
@@ -1154,7 +1154,7 @@ int ovl_indexdir_cleanup(struct ovl_fs *ofs)
* Whiteout orphan index to block future open by
* handle after overlay nlink dropped to zero.
*/
- err = ovl_cleanup_and_whiteout(indexdir, dir, index);
+ err = ovl_cleanup_and_whiteout(ofs, dir, index);
} else {
/* Cleanup orphan index entries */
err = ovl_cleanup(dir, index);