diff options
| author | Amir Goldstein <amir73il@gmail.com> | 2019-11-15 15:12:40 +0300 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2020-01-22 22:11:41 +0300 |
| commit | 94375f9d5103c2eb2f905381993a2fb70c297364 (patch) | |
| tree | ca62fcf2e72a5b32ea218408e9ada833fe25c8e2 /fs/overlayfs/namei.c | |
| parent | b504c6540d1752c73e16548062c49bc9f447cb12 (diff) | |
| download | linux-94375f9d5103c2eb2f905381993a2fb70c297364.tar.xz | |
ovl: generalize the lower_layers[] array
Rename lower_layers[] array to layers[], extend its size by one and
initialize layers[0] with upper layer values. Lower layers are now
addressed with index 1..numlower. layers[0] is reserved even with lower
only overlay.
[SzM: replace ofs->numlower with ofs->numlayer, the latter's value is
incremented by one]
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/overlayfs/namei.c')
| -rw-r--r-- | fs/overlayfs/namei.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c index 205163f2d3b6..ed9e129fae04 100644 --- a/fs/overlayfs/namei.c +++ b/fs/overlayfs/namei.c @@ -322,16 +322,16 @@ int ovl_check_origin_fh(struct ovl_fs *ofs, struct ovl_fh *fh, bool connected, struct dentry *origin = NULL; int i; - for (i = 0; i < ofs->numlower; i++) { + for (i = 1; i < ofs->numlayer; i++) { /* * If lower fs uuid is not unique among lower fs we cannot match * fh->uuid to layer. */ - if (ofs->lower_layers[i].fsid && - ofs->lower_layers[i].fs->bad_uuid) + if (ofs->layers[i].fsid && + ofs->layers[i].fs->bad_uuid) continue; - origin = ovl_decode_real_fh(fh, ofs->lower_layers[i].mnt, + origin = ovl_decode_real_fh(fh, ofs->layers[i].mnt, connected); if (origin) break; @@ -354,7 +354,7 @@ int ovl_check_origin_fh(struct ovl_fs *ofs, struct ovl_fh *fh, bool connected, } **stackp = (struct ovl_path){ .dentry = origin, - .layer = &ofs->lower_layers[i] + .layer = &ofs->layers[i] }; return 0; @@ -885,7 +885,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry, if (!d.stop && poe->numlower) { err = -ENOMEM; - stack = kcalloc(ofs->numlower, sizeof(struct ovl_path), + stack = kcalloc(ofs->numlayer - 1, sizeof(struct ovl_path), GFP_KERNEL); if (!stack) goto out_put_upper; |