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| author | Chandan Rajendra <chandan@linux.vnet.ibm.com> | 2017-07-24 01:57:54 -0500 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2017-11-09 10:23:27 +0100 |
| commit | b93436320c1e9089a055941523571cd7c037f7cb (patch) | |
| tree | c97ece67e4499dd7b184b728272786b597aed681 /fs/overlayfs/readdir.c | |
| parent | ee023c30d7d6bc21d3a85f3625a30209bdcc41e6 (diff) | |
| download | op-kernel-dev-b93436320c1e9089a055941523571cd7c037f7cb.zip op-kernel-dev-b93436320c1e9089a055941523571cd7c037f7cb.tar.gz | |
ovl: re-structure overlay lower layers in-memory
Define new structures to represent overlay instance lower layers and
overlay merge dir lower layers to make room for storing more per layer
information in-memory.
Instead of keeping the fs instance lower layers in an array of struct
vfsmount, keep them in an array of new struct ovl_layer, that has a
pointer to struct vfsmount.
Instead of keeping the dentry lower layers in an array of struct path,
keep them in an array of new struct ovl_path, that has a pointer to
struct dentry and to struct ovl_layer.
Add a small helper to find the fs layer id that correspopnds to a lower
struct ovl_path and use it in ovl_lookup().
[amir: split re-structure from anonymous bdev patch]
Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-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.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/overlayfs/readdir.c b/fs/overlayfs/readdir.c index a5ad5b3..914e77e 100644 --- a/fs/overlayfs/readdir.c +++ b/fs/overlayfs/readdir.c @@ -1014,7 +1014,7 @@ void ovl_workdir_cleanup(struct inode *dir, struct vfsmount *mnt, } int ovl_indexdir_cleanup(struct dentry *dentry, struct vfsmount *mnt, - struct path *lowerstack, unsigned int numlower) + struct ovl_path *lower, unsigned int numlower) { int err; struct dentry *index = NULL; @@ -1049,7 +1049,7 @@ int ovl_indexdir_cleanup(struct dentry *dentry, struct vfsmount *mnt, index = NULL; break; } - err = ovl_verify_index(index, lowerstack, numlower); + err = ovl_verify_index(index, lower, numlower); /* Cleanup stale and orphan index entries */ if (err && (err == -ESTALE || err == -ENOENT)) err = ovl_cleanup(dir, index); |
