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| author | Amir Goldstein <amir73il@gmail.com> | 2017-10-20 16:19:06 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2017-10-24 16:06:17 +0200 |
| commit | 7937a56fdf0b064c2ffa33025210f725a4ebc822 (patch) | |
| tree | 188addb3f80fe0cb3e1973b5e6aba085b7f408dc /fs | |
| parent | ovl: fix EIO from lookup of non-indexed upper (diff) | |
| download | linux-7937a56fdf0b064c2ffa33025210f725a4ebc822.tar.xz linux-7937a56fdf0b064c2ffa33025210f725a4ebc822.zip | |
ovl: handle ENOENT on index lookup
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")
Cc: <stable@vger.kernel.org> # v4.13
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
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 05e9a0ad5c08..0d9b8ce5ea43 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, |