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| author | Johannes Berg <johannes.berg@intel.com> | 2015-04-22 11:55:14 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-04-24 15:45:03 -0400 |
| commit | 8e3c500594dca9a12c27eb6d77b82e0766879bfd (patch) | |
| tree | 1bb64839f3aa1ccff5e694a405cb9e2d4a344ba7 | |
| parent | bb668734c4c960c8f61f017585b323b97e5f47b5 (diff) | |
| download | lwn-8e3c500594dca9a12c27eb6d77b82e0766879bfd.tar.gz lwn-8e3c500594dca9a12c27eb6d77b82e0766879bfd.zip | |
fs/9p: fix readdir()
Al Viro's IOV changes broke 9p readdir() because the new code
didn't abort the read when it returned nothing. The original
code checked if the combined error/length was <= 0 but in the
new code that accidentally got changed to just an error check.
Add back the return from the function when nothing is read.
Cc: Al Viro <viro@zeniv.linux.org.uk>
Fixes: e1200fe68f20 ("9p: switch p9_client_read() to passing struct iov_iter *")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/9p/vfs_dir.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c index 76c3b1ab6361..5cc00e56206e 100644 --- a/fs/9p/vfs_dir.c +++ b/fs/9p/vfs_dir.c @@ -138,6 +138,8 @@ static int v9fs_dir_readdir(struct file *file, struct dir_context *ctx) &err); if (err) return err; + if (n == 0) + return 0; rdir->head = 0; rdir->tail = n; |