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| author | Amir Goldstein <amir73il@gmail.com> | 2017-10-20 17:19:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-02 11:54:47 +0300 |
| commit | 725b704522357dad35d46cd0a2b26418669fd06f (patch) | |
| tree | a28938dfef87e2e56ea4d75bc849e91f64ac3c4c /fs | |
| parent | 02a7b62123140fbcd991e59ff8001c26e00d1f0a (diff) | |
| download | linux-725b704522357dad35d46cd0a2b26418669fd06f.tar.xz | |
ovl: handle ENOENT on index lookup
commit 7937a56fdf0b064c2ffa33025210f725a4ebc822 upstream.
Treat ENOENT from index entry lookup the same way as treating a returned
negative dentry. Apparently, either could be returned if file is not
found, depending on the underlying file system.
Fixes: 359f392ca53e ("ovl: lookup index entry for copy up origin")
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/overlayfs/namei.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c index b88b2165e8eb..e2fc425da165 100644 --- a/fs/overlayfs/namei.c +++ b/fs/overlayfs/namei.c @@ -507,6 +507,10 @@ static struct dentry *ovl_lookup_index(struct dentry *dentry, index = lookup_one_len_unlocked(name.name, ofs->indexdir, name.len); if (IS_ERR(index)) { err = PTR_ERR(index); + if (err == -ENOENT) { + index = NULL; + goto out; + } pr_warn_ratelimited("overlayfs: failed inode index lookup (ino=%lu, key=%*s, err=%i);\n" "overlayfs: mount with '-o index=off' to disable inodes index.\n", d_inode(origin)->i_ino, name.len, name.name, |