| Date | Wed, 09 Nov 2011 13:30:49 -0800 | From | Greg KH <> | Subject | [002/264] CIFS: Fix DFS handling in cifs_get_file_info |
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3.1-stable review patch. If anyone has any objections, please let me know.
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From: Pavel Shilovsky <piastry@etersoft.ru>
commit 42274bb22afc3e877ae5abed787b0b09d7dede52 upstream.
We should call cifs_all_info_to_fattr in rc == 0 case only.
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- fs/cifs/inode.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-)
--- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -562,7 +562,16 @@ int cifs_get_file_info(struct file *filp xid = GetXid(); rc = CIFSSMBQFileInfo(xid, tcon, cfile->netfid, &find_data); - if (rc == -EOPNOTSUPP || rc == -EINVAL) { + switch (rc) { + case 0: + cifs_all_info_to_fattr(&fattr, &find_data, cifs_sb, false); + break; + case -EREMOTE: + cifs_create_dfs_fattr(&fattr, inode->i_sb); + rc = 0; + break; + case -EOPNOTSUPP: + case -EINVAL: /* * FIXME: legacy server -- fall back to path-based call? * for now, just skip revalidating and mark inode for @@ -570,18 +579,14 @@ int cifs_get_file_info(struct file *filp */ rc = 0; CIFS_I(inode)->time = 0; + default: goto cgfi_exit; - } else if (rc == -EREMOTE) { - cifs_create_dfs_fattr(&fattr, inode->i_sb); - rc = 0; - } else if (rc) - goto cgfi_exit; + } /* * don't bother with SFU junk here -- just mark inode as needing * revalidation. */ - cifs_all_info_to_fattr(&fattr, &find_data, cifs_sb, false); fattr.cf_uniqueid = CIFS_I(inode)->uniqueid; fattr.cf_flags |= CIFS_FATTR_NEED_REVAL; cifs_fattr_to_inode(inode, &fattr);
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