CIFS: Fix wrong filename length for SMB2

commit 1bbe4997b13de903c421c1cc78440e544b5f9064 upstream.

The existing code uses the old MAX_NAME constant. This causes
XFS test generic/013 to fail. Fix it by replacing MAX_NAME with
PATH_MAX that SMB1 uses. Also remove an unused MAX_NAME constant
definition.

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index e2c2d96491fa8dc879c87fff56089a27b3dab10d..52480240168ef6642ce4adc0edaf6253c477545e 100644 (file)
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -74,11 +74,6 @@
 #define SERVER_NAME_LENGTH 40
 #define SERVER_NAME_LEN_WITH_NULL     (SERVER_NAME_LENGTH + 1)
 
-/* used to define string lengths for reversing unicode strings */
-/*         (256+1)*2 = 514                                     */
-/*           (max path length + 1 for null) * 2 for unicode    */
-#define MAX_NAME 514
-
 /* SMB echo "timeout" -- FIXME: tunable? */
 #define SMB_ECHO_INTERVAL (60 * HZ)
 

diff --git a/fs/cifs/smb2file.c b/fs/cifs/smb2file.c
index 5da1b55a22581c5dd38daec3164c2ac32eb82a71..d801f63cddd03d707ac2bf20c97fd61c40ee4043 100644 (file)
--- a/fs/cifs/smb2file.c
+++ b/fs/cifs/smb2file.c
@@ -73,7 +73,7 @@ smb2_open_file(const unsigned int xid, struct cifs_tcon *tcon, const char *path,
                goto out;
        }
 
-       smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
+       smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
                            GFP_KERNEL);
        if (smb2_data == NULL) {
                rc = -ENOMEM;

diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
index fff6dfba6204ddd291dd67c4213dfdfed4440c0f..6d535797ec764791f978f9b839b4d130ab8611b0 100644 (file)
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -123,7 +123,7 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
 
        *adjust_tz = false;
 
-       smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
+       smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
                            GFP_KERNEL);
        if (smb2_data == NULL)
                return -ENOMEM;

diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index e2756bb40b4db49838f11578eb3cb937e61c8d33..fe7ac989c6c48042d15478da57170759c650839a 100644 (file)
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -243,7 +243,7 @@ smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon,
        int rc;
        struct smb2_file_all_info *smb2_data;
 
-       smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
+       smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
                            GFP_KERNEL);
        if (smb2_data == NULL)
                return -ENOMEM;

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 184c55820d1f270df2661a694baca633fe38409e..e37790841446879d038e7be78b236cef91b7f6cb 100644 (file)
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1204,7 +1204,7 @@ SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon,
 {
        return query_info(xid, tcon, persistent_fid, volatile_fid,
                          FILE_ALL_INFORMATION,
-                         sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
+                         sizeof(struct smb2_file_all_info) + PATH_MAX * 2,
                          sizeof(struct smb2_file_all_info), data);
 }