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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-01 15:03:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-01 15:03:37 -0700
commitc6ea21e35bf3691cad59647c771e6606067f627d (patch)
tree5723cd61bbc90e7b09aa342350dfb0b7b5576c21 /fs
parentf4a3330d76b17239fb34a99d54692248c2d0468c (diff)
parentf569599ae70f0899035f8d5876a7939f629c5976 (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: cifs: prevent infinite recursion in cifs_reconnect_tcon cifs: set backing_dev_info on new S_ISREG inodes
Diffstat (limited to 'fs')
-rw-r--r--fs/cifs/cifssmb.c49
-rw-r--r--fs/cifs/inode.c2
2 files changed, 35 insertions, 16 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index c65c3419dd3..7e83b356cc9 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -232,7 +232,7 @@ static int
small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
void **request_buf)
{
- int rc = 0;
+ int rc;
rc = cifs_reconnect_tcon(tcon, smb_command);
if (rc)
@@ -250,7 +250,7 @@ small_smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
if (tcon != NULL)
cifs_stats_inc(&tcon->num_smbs_sent);
- return rc;
+ return 0;
}
int
@@ -281,16 +281,9 @@ small_smb_init_no_tc(const int smb_command, const int wct,
/* If the return code is zero, this function must fill in request_buf pointer */
static int
-smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
- void **request_buf /* returned */ ,
- void **response_buf /* returned */ )
+__smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
+ void **request_buf, void **response_buf)
{
- int rc = 0;
-
- rc = cifs_reconnect_tcon(tcon, smb_command);
- if (rc)
- return rc;
-
*request_buf = cifs_buf_get();
if (*request_buf == NULL) {
/* BB should we add a retry in here if not a writepage? */
@@ -309,7 +302,31 @@ smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
if (tcon != NULL)
cifs_stats_inc(&tcon->num_smbs_sent);
- return rc;
+ return 0;
+}
+
+/* If the return code is zero, this function must fill in request_buf pointer */
+static int
+smb_init(int smb_command, int wct, struct cifsTconInfo *tcon,
+ void **request_buf, void **response_buf)
+{
+ int rc;
+
+ rc = cifs_reconnect_tcon(tcon, smb_command);
+ if (rc)
+ return rc;
+
+ return __smb_init(smb_command, wct, tcon, request_buf, response_buf);
+}
+
+static int
+smb_init_no_reconnect(int smb_command, int wct, struct cifsTconInfo *tcon,
+ void **request_buf, void **response_buf)
+{
+ if (tcon->ses->need_reconnect || tcon->need_reconnect)
+ return -EHOSTDOWN;
+
+ return __smb_init(smb_command, wct, tcon, request_buf, response_buf);
}
static int validate_t2(struct smb_t2_rsp *pSMB)
@@ -4534,8 +4551,8 @@ CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon)
cFYI(1, "In QFSUnixInfo");
QFSUnixRetry:
- rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
- (void **) &pSMBr);
+ rc = smb_init_no_reconnect(SMB_COM_TRANSACTION2, 15, tcon,
+ (void **) &pSMB, (void **) &pSMBr);
if (rc)
return rc;
@@ -4604,8 +4621,8 @@ CIFSSMBSetFSUnixInfo(const int xid, struct cifsTconInfo *tcon, __u64 cap)
cFYI(1, "In SETFSUnixInfo");
SETFSUnixRetry:
/* BB switch to small buf init to save memory */
- rc = smb_init(SMB_COM_TRANSACTION2, 15, tcon, (void **) &pSMB,
- (void **) &pSMBr);
+ rc = smb_init_no_reconnect(SMB_COM_TRANSACTION2, 15, tcon,
+ (void **) &pSMB, (void **) &pSMBr);
if (rc)
return rc;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 93f77d438d3..53cce8cc222 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -801,6 +801,8 @@ retry_iget5_locked:
inode->i_flags |= S_NOATIME | S_NOCMTIME;
if (inode->i_state & I_NEW) {
inode->i_ino = hash;
+ if (S_ISREG(inode->i_mode))
+ inode->i_data.backing_dev_info = sb->s_bdi;
#ifdef CONFIG_CIFS_FSCACHE
/* initialize per-inode cache cookie pointer */
CIFS_I(inode)->fscache = NULL;