From: Steve French <sfrench@us.ibm.com>
Date: Thu, 2 Nov 2006 03:45:24 +0000 (+0000)
Subject: [CIFS] report rename failure when target file is locked by Windows
X-Git-Tag: v2.6.19-rc5~62^2
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8e87d4dc159148f04f515bc072df22a2c089e7f2;p=linux-2.6

[CIFS] report rename failure when target file is locked by Windows

Fixes Samba bugzilla bug # 4182

Rename by handle failures (retry after rename by path) were not
being returned back.

Signed-off-by: Steve French <sfrench@us.ibm.com>
---

diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 50afab81a5..0b3c37ef52 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -3,7 +3,9 @@ Version 1.46
 Support deep tree mounts.  Better support OS/2, Win9x (DOS) time stamps.
 Allow null user to be specified on mount ("username="). Do not return
 EINVAL on readdir when filldir fails due to overwritten blocksize
-(fixes FC problem)
+(fixes FC problem).  Return error in rename 2nd attempt retry (ie report
+if rename by handle also fails, after rename by path fails, we were
+not reporting whether the retry worked or not).
 
 Version 1.45
 ------------
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 35d54bb086..dffe295825 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -885,10 +885,14 @@ int cifs_rename(struct inode *source_inode, struct dentry *source_direntry,
 			kmalloc(2 * sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL);
 		if (info_buf_source != NULL) {
 			info_buf_target = info_buf_source + 1;
-			rc = CIFSSMBUnixQPathInfo(xid, pTcon, fromName,
-				info_buf_source, cifs_sb_source->local_nls, 
-				cifs_sb_source->mnt_cifs_flags &
-					CIFS_MOUNT_MAP_SPECIAL_CHR);
+			if (pTcon->ses->capabilities & CAP_UNIX)
+				rc = CIFSSMBUnixQPathInfo(xid, pTcon, fromName,
+					info_buf_source, 
+					cifs_sb_source->local_nls,
+					cifs_sb_source->mnt_cifs_flags &
+						CIFS_MOUNT_MAP_SPECIAL_CHR);
+			/* else rc is still EEXIST so will fall through to
+			   unlink the target and retry rename */
 			if (rc == 0) {
 				rc = CIFSSMBUnixQPathInfo(xid, pTcon, toName,
 						info_buf_target,
@@ -937,7 +941,7 @@ int cifs_rename(struct inode *source_inode, struct dentry *source_direntry,
 				 cifs_sb_source->mnt_cifs_flags & 
 					CIFS_MOUNT_MAP_SPECIAL_CHR);
 		if (rc==0) {
-			CIFSSMBRenameOpenFile(xid, pTcon, netfid, toName,
+			rc = CIFSSMBRenameOpenFile(xid, pTcon, netfid, toName,
 					      cifs_sb_source->local_nls, 
 					      cifs_sb_source->mnt_cifs_flags &
 						CIFS_MOUNT_MAP_SPECIAL_CHR);