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Subjectv2.6.22.21-op1-rc2
linux v2.6.22.21-op1-rc2
"stable" review patch

what is this tree?
it is my long term supported kernel, when i have time for it, i
backported the most important fixes.

http://repo.or.cz/w/linux-2.6.22.y-op.git rc
--
Makefile | 2 +-
drivers/md/raid5.c | 14 ++---
drivers/net/tulip/tulip_core.c | 4 +
fs/cifs/cifs_debug.c | 92 +++--------------------------
fs/cifs/cifsglob.h | 11 ++++
fs/cifs/cifsproto.h | 4 +-
fs/cifs/cifssmb.c | 130 ++++++++++++++++++----------------------
fs/cifs/connect.c | 9 ++-
fs/cifs/file.c | 14 ++--
fs/cifs/sess.c | 3 +-
fs/cifs/transport.c | 88 +++++++++++++++++++++------
mm/slab.c | 5 +-
12 files changed, 174 insertions(+), 202 deletions(-)
--
Joe Korty (1):
slab: NUMA slab allocator migration bugfix

NeilBrown (1):
md: fix an occasional deadlock in raid5

Oliver Pinter (1):
v2.6.22.21-op1-rc2

Steve French (1):
Fix buffer overflow if server sends corrupt response to small

Suresh Jayaraman (1):
Fix sign mount option and sign proc config setting

andrew.patterson <> hp.com (1):
MCA when shutting down tulip quad-NIC

--
Thanks,
Oliver
diff --git a/Makefile b/Makefile
index 4fdef51..1083af5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 22
-EXTRAVERSION = .20-op1
+EXTRAVERSION = .21-op1-rc2
NAME = Holy Dancing Manatees, Batman!

# *DOCUMENTATION*
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 061375e..81ed88f 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2525,7 +2525,8 @@ static void raid5_activate_delayed(raid5_conf_t *conf)
atomic_inc(&conf->preread_active_stripes);
list_add_tail(&sh->lru, &conf->handle_list);
}
- }
+ } else
+ blk_plug_device(conf->mddev->queue);
}

static void activate_bit_delay(raid5_conf_t *conf)
@@ -2949,7 +2950,8 @@ static int make_request(request_queue_t *q, struct bio * bi)
goto retry;
}
finish_wait(&conf->wait_for_overlap, &w);
- handle_stripe(sh, NULL);
+ set_bit(STRIPE_HANDLE, &sh->state);
+ clear_bit(STRIPE_DELAYED, &sh->state);
release_stripe(sh);
} else {
/* cannot get stripe for read-ahead, just give-up */
@@ -3267,7 +3269,7 @@ static int retry_aligned_read(raid5_conf_t *conf, struct bio *raid_bio)
* During the scan, completed stripes are saved for us by the interrupt
* handler, so that they will not have to wait for our next wakeup.
*/
-static void raid5d (mddev_t *mddev)
+static void raid5d(mddev_t *mddev)
{
struct stripe_head *sh;
raid5_conf_t *conf = mddev_to_conf(mddev);
@@ -3292,12 +3294,6 @@ static void raid5d (mddev_t *mddev)
activate_bit_delay(conf);
}

- if (list_empty(&conf->handle_list) &&
- atomic_read(&conf->preread_active_stripes) < IO_THRESHOLD &&
- !blk_queue_plugged(mddev->queue) &&
- !list_empty(&conf->delayed_list))
- raid5_activate_delayed(conf);
-
while ((bio = remove_bio_from_retry(conf))) {
int ok;
spin_unlock_irq(&conf->device_lock);
diff --git a/drivers/net/tulip/tulip_core.c b/drivers/net/tulip/tulip_core.c
index 041af63..4df0284 100644
--- a/drivers/net/tulip/tulip_core.c
+++ b/drivers/net/tulip/tulip_core.c
@@ -1794,6 +1794,10 @@ static void __devexit tulip_remove_one (struct pci_dev *pdev)
return;

tp = netdev_priv(dev);
+
+ /* shoot NIC in the head before deallocating descriptors */
+ pci_disable_device(tp->pdev);
+
unregister_netdev(dev);
pci_free_consistent (pdev,
sizeof (struct tulip_rx_desc) * RX_RING_SIZE +
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 07838b2..d05c108 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -901,90 +901,14 @@ security_flags_write(struct file *file, const char __user *buffer,
}
/* flags look ok - update the global security flags for cifs module */
extended_security = flags;
+ if (extended_security & CIFSSEC_MUST_SIGN) {
+ /* requiring signing implies signing is allowed */
+ extended_security |= CIFSSEC_MAY_SIGN;
+ cFYI(1, ("packet signing now required"));
+ } else if ((extended_security & CIFSSEC_MAY_SIGN) == 0) {
+ cFYI(1, ("packet signing disabled"));
+ }
+ /* BB should we turn on MAY flags for other MUST options? */
return count;
}
-
-/* static int
-ntlmv2_enabled_read(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len;
-
- len = sprintf(page, "%d\n", ntlmv2_support);
-
- len -= off;
- *start = page + off;
-
- if (len > count)
- len = count;
- else
- *eof = 1;
-
- if (len < 0)
- len = 0;
-
- return len;
-}
-static int
-ntlmv2_enabled_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
-{
- char c;
- int rc;
-
- rc = get_user(c, buffer);
- if (rc)
- return rc;
- if (c == '0' || c == 'n' || c == 'N')
- ntlmv2_support = 0;
- else if (c == '1' || c == 'y' || c == 'Y')
- ntlmv2_support = 1;
- else if (c == '2')
- ntlmv2_support = 2;
-
- return count;
-}
-
-static int
-packet_signing_enabled_read(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len;
-
- len = sprintf(page, "%d\n", sign_CIFS_PDUs);
-
- len -= off;
- *start = page + off;
-
- if (len > count)
- len = count;
- else
- *eof = 1;
-
- if (len < 0)
- len = 0;
-
- return len;
-}
-static int
-packet_signing_enabled_write(struct file *file, const char __user *buffer,
- unsigned long count, void *data)
-{
- char c;
- int rc;
-
- rc = get_user(c, buffer);
- if (rc)
- return rc;
- if (c == '0' || c == 'n' || c == 'N')
- sign_CIFS_PDUs = 0;
- else if (c == '1' || c == 'y' || c == 'Y')
- sign_CIFS_PDUs = 1;
- else if (c == '2')
- sign_CIFS_PDUs = 2;
-
- return count;
-} */
-
-
#endif
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 23655de..5d6f120 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -442,6 +442,17 @@ struct dir_notify_req {
#define CIFS_LARGE_BUFFER 2
#define CIFS_IOVEC 4 /* array of response buffers */

+/* Type of Request to SendReceive2 */
+#define CIFS_STD_OP 0 /* normal request timeout */
+#define CIFS_LONG_OP 1 /* long op (up to 45 sec, oplock time) */
+#define CIFS_VLONG_OP 2 /* sloow op - can take up to 180 seconds */
+#define CIFS_BLOCKING_OP 4 /* operation can block */
+#define CIFS_ASYNC_OP 8 /* do not wait for response */
+#define CIFS_TIMEOUT_MASK 0x00F /* only one of 5 above set in req */
+#define CIFS_LOG_ERROR 0x010 /* log NT STATUS if non-zero */
+#define CIFS_LARGE_BUF_OP 0x020 /* large request buffer */
+#define CIFS_NO_RESP 0x040 /* no response buffer required */
+
/* Security Flags: indicate type of session setup needed */
#define CIFSSEC_MAY_SIGN 0x00001
#define CIFSSEC_MAY_NTLM 0x00002
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 5d163e2..f324ccc 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -48,9 +48,11 @@ extern int SendReceive(const unsigned int /* xid */ , struct cifsSesInfo *,
struct smb_hdr * /* input */ ,
struct smb_hdr * /* out */ ,
int * /* bytes returned */ , const int long_op);
+extern int SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses,
+ struct smb_hdr *in_buf, int flags);
extern int SendReceive2(const unsigned int /* xid */ , struct cifsSesInfo *,
struct kvec *, int /* nvec to send */,
- int * /* type of buf returned */ , const int long_op);
+ int * /* type of buf returned */ , const int flags);
extern int SendReceiveBlockingLock(const unsigned int /* xid */ ,
struct cifsTconInfo *,
struct smb_hdr * /* input */ ,
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 57419a1..db8d110 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -426,11 +426,11 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)

/* if any of auth flags (ie not sign or seal) are overriden use them */
if(ses->overrideSecFlg & (~(CIFSSEC_MUST_SIGN | CIFSSEC_MUST_SEAL)))
- secFlags = ses->overrideSecFlg;
+ secFlags = ses->overrideSecFlg; /* BB FIXME fix sign flags? */
else /* if override flags set only sign/seal OR them with global auth */
secFlags = extended_security | ses->overrideSecFlg;

- cFYI(1,("secFlags 0x%x",secFlags));
+ cFYI(1, ("secFlags 0x%x", secFlags));

pSMB->hdr.Mid = GetNextMid(server);
pSMB->hdr.Flags2 |= (SMBFLG2_UNICODE | SMBFLG2_ERR_STATUS);
@@ -633,22 +633,32 @@ CIFSSMBNegotiate(unsigned int xid, struct cifsSesInfo *ses)
#ifdef CONFIG_CIFS_WEAK_PW_HASH
signing_check:
#endif
- if(sign_CIFS_PDUs == FALSE) {
+ if ((secFlags & CIFSSEC_MAY_SIGN) == 0) {
+ /* MUST_SIGN already includes the MAY_SIGN FLAG
+ so if this is zero it means that signing is disabled */
+ cFYI(1, ("Signing disabled"));
if(server->secMode & SECMODE_SIGN_REQUIRED)
- cERROR(1,("Server requires "
- "/proc/fs/cifs/PacketSigningEnabled to be on"));
+ cERROR(1, ("Server requires "
+ "/proc/fs/cifs/PacketSigningEnabled "
+ "to be on"));
server->secMode &=
~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED);
- } else if(sign_CIFS_PDUs == 1) {
+ } else if ((secFlags & CIFSSEC_MUST_SIGN) == CIFSSEC_MUST_SIGN) {
+ /* signing required */
+ cFYI(1, ("Must sign - secFlags 0x%x", secFlags));
+ if((server->secMode &
+ (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) {
+ cERROR(1,
+ ("signing required but server lacks support"));
+ } else
+ server->secMode |= SECMODE_SIGN_REQUIRED;
+ } else {
+ /* signing optional ie CIFSSEC_MAY_SIGN */
if((server->secMode & SECMODE_SIGN_REQUIRED) == 0)
- server->secMode &=
+ server->secMode &=
~(SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED);
- } else if(sign_CIFS_PDUs == 2) {
- if((server->secMode &
- (SECMODE_SIGN_ENABLED | SECMODE_SIGN_REQUIRED)) == 0) {
- cERROR(1,("signing required but server lacks support"));
- }
}
+
neg_err_exit:
cifs_buf_release(pSMB);

@@ -660,9 +670,7 @@ int
CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon)
{
struct smb_hdr *smb_buffer;
- struct smb_hdr *smb_buffer_response; /* BB removeme BB */
int rc = 0;
- int length;

cFYI(1, ("In tree disconnect"));
/*
@@ -699,16 +707,12 @@ CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon)
if (rc) {
up(&tcon->tconSem);
return rc;
- } else {
- smb_buffer_response = smb_buffer; /* BB removeme BB */
}
- rc = SendReceive(xid, tcon->ses, smb_buffer, smb_buffer_response,
- &length, 0);
+
+ rc = SendReceiveNoRsp(xid, tcon->ses, smb_buffer, 0);
if (rc)
cFYI(1, ("Tree disconnect failed %d", rc));

- if (smb_buffer)
- cifs_small_buf_release(smb_buffer);
up(&tcon->tconSem);

/* No need to return error on this operation if tid invalidated and
@@ -722,10 +726,8 @@ CIFSSMBTDis(const int xid, struct cifsTconInfo *tcon)
int
CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
{
- struct smb_hdr *smb_buffer_response;
LOGOFF_ANDX_REQ *pSMB;
int rc = 0;
- int length;

cFYI(1, ("In SMBLogoff for session disconnect"));
if (ses)
@@ -744,8 +746,6 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
return rc;
}

- smb_buffer_response = (struct smb_hdr *)pSMB; /* BB removeme BB */
-
if(ses->server) {
pSMB->hdr.Mid = GetNextMid(ses->server);

@@ -757,8 +757,7 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
pSMB->hdr.Uid = ses->Suid;

pSMB->AndXCommand = 0xFF;
- rc = SendReceive(xid, ses, (struct smb_hdr *) pSMB,
- smb_buffer_response, &length, 0);
+ rc = SendReceiveNoRsp(xid, ses, (struct smb_hdr *) pSMB, 0);
if (ses->server) {
atomic_dec(&ses->server->socketUseCount);
if (atomic_read(&ses->server->socketUseCount) == 0) {
@@ -769,7 +768,6 @@ CIFSSMBLogoff(const int xid, struct cifsSesInfo *ses)
}
}
up(&ses->sesSem);
- cifs_small_buf_release(pSMB);

/* if session dead then we do not need to do ulogoff,
since server closed smb session, no sense reporting
@@ -1143,7 +1141,7 @@ OldOpenRetry:
pSMB->ByteCount = cpu_to_le16(count);
/* long_op set to 1 to allow for oplock break timeouts */
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned, 1);
+ (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP);
cifs_stats_inc(&tcon->num_opens);
if (rc) {
cFYI(1, ("Error in Open = %d", rc));
@@ -1257,7 +1255,7 @@ openRetry:
pSMB->ByteCount = cpu_to_le16(count);
/* long_op set to 1 to allow for oplock break timeouts */
rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned, 1);
+ (struct smb_hdr *)pSMBr, &bytes_returned, CIFS_LONG_OP);
cifs_stats_inc(&tcon->num_opens);
if (rc) {
cFYI(1, ("Error in Open = %d", rc));
@@ -1337,7 +1335,7 @@ CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
iov[0].iov_len = pSMB->hdr.smb_buf_length + 4;
rc = SendReceive2(xid, tcon->ses, iov,
1 /* num iovecs */,
- &resp_buf_type, 0);
+ &resp_buf_type, CIFS_STD_OP | CIFS_LOG_ERROR);
cifs_stats_inc(&tcon->num_reads);
pSMBr = (READ_RSP *)iov[0].iov_base;
if (rc) {
@@ -1596,7 +1594,7 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
int timeout = 0;
__u16 count;

- cFYI(1, ("In CIFSSMBLock - timeout %d numLock %d",waitFlag,numLock));
+ cFYI(1, ("CIFSSMBLock timeout %d numLock %d", waitFlag, numLock));
rc = small_smb_init(SMB_COM_LOCKING_ANDX, 8, tcon, (void **) &pSMB);

if (rc)
@@ -1605,10 +1603,10 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
pSMBr = (LOCK_RSP *)pSMB; /* BB removeme BB */

if(lockType == LOCKING_ANDX_OPLOCK_RELEASE) {
- timeout = -1; /* no response expected */
+ timeout = CIFS_ASYNC_OP; /* no response expected */
pSMB->Timeout = 0;
} else if (waitFlag == TRUE) {
- timeout = 3; /* blocking operation, no timeout */
+ timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */
pSMB->Timeout = cpu_to_le32(-1);/* blocking - do not time out */
} else {
pSMB->Timeout = 0;
@@ -1638,15 +1636,16 @@ CIFSSMBLock(const int xid, struct cifsTconInfo *tcon,
if (waitFlag) {
rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned);
+ cifs_small_buf_release(pSMB);
} else {
- rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned, timeout);
+ rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *)pSMB,
+ timeout);
+ /* SMB buffer freed by function above */
}
cifs_stats_inc(&tcon->num_locks);
if (rc) {
cFYI(1, ("Send error in Lock = %d", rc));
}
- cifs_small_buf_release(pSMB);

/* Note: On -EAGAIN error only caller can retry on handle based calls
since file handle passed in no longer valid */
@@ -1666,7 +1665,9 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
int rc = 0;
int timeout = 0;
int bytes_returned = 0;
+ int resp_buf_type = 0;
__u16 params, param_offset, offset, byte_count, count;
+ struct kvec iov[1];

cFYI(1, ("Posix Lock"));

@@ -1710,7 +1711,7 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,

parm_data->lock_type = cpu_to_le16(lock_type);
if(waitFlag) {
- timeout = 3; /* blocking operation, no timeout */
+ timeout = CIFS_BLOCKING_OP; /* blocking operation, no timeout */
parm_data->lock_flags = cpu_to_le16(1);
pSMB->Timeout = cpu_to_le32(-1);
} else
@@ -1730,8 +1731,13 @@ CIFSSMBPosixLock(const int xid, struct cifsTconInfo *tcon,
rc = SendReceiveBlockingLock(xid, tcon, (struct smb_hdr *) pSMB,
(struct smb_hdr *) pSMBr, &bytes_returned);
} else {
- rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned, timeout);
+ iov[0].iov_base = (char *)pSMB;
+ iov[0].iov_len = pSMB->hdr.smb_buf_length + 4;
+ rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovecs */,
+ &resp_buf_type, timeout);
+ pSMB = NULL; /* request buf already freed by SendReceive2. Do
+ not try to free it twice below on exit */
+ pSMBr = (struct smb_com_transaction2_sfi_rsp *)iov[0].iov_base;
}

if (rc) {
@@ -1766,6 +1772,11 @@ plk_err_exit:
if (pSMB)
cifs_small_buf_release(pSMB);

+ if (resp_buf_type == CIFS_SMALL_BUFFER)
+ cifs_small_buf_release(iov[0].iov_base);
+ else if (resp_buf_type == CIFS_LARGE_BUFFER)
+ cifs_buf_release(iov[0].iov_base);
+
/* Note: On -EAGAIN error only caller can retry on handle based calls
since file handle passed in no longer valid */

@@ -1778,8 +1789,6 @@ CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id)
{
int rc = 0;
CLOSE_REQ *pSMB = NULL;
- CLOSE_RSP *pSMBr = NULL;
- int bytes_returned;
cFYI(1, ("In CIFSSMBClose"));

/* do not retry on dead session on close */
@@ -1789,13 +1798,10 @@ CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id)
if (rc)
return rc;

- pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */
-
pSMB->FileID = (__u16) smb_file_id;
pSMB->LastWriteTime = 0xFFFFFFFF;
pSMB->ByteCount = 0;
- rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned, 0);
+ rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
cifs_stats_inc(&tcon->num_closes);
if (rc) {
if(rc!=-EINTR) {
@@ -1804,8 +1810,6 @@ CIFSSMBClose(const int xid, struct cifsTconInfo *tcon, int smb_file_id)
}
}

- cifs_small_buf_release(pSMB);
-
/* Since session is dead, file will be closed on server already */
if(rc == -EAGAIN)
rc = 0;
@@ -2989,7 +2993,8 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid,
iov[0].iov_base = (char *)pSMB;
iov[0].iov_len = pSMB->hdr.smb_buf_length + 4;

- rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type, 0);
+ rc = SendReceive2(xid, tcon->ses, iov, 1 /* num iovec */, &buf_type,
+ CIFS_STD_OP);
cifs_stats_inc(&tcon->num_acl_get);
if (rc) {
cFYI(1, ("Send error in QuerySecDesc = %d", rc));
@@ -3634,8 +3639,6 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle
{
int rc = 0;
FINDCLOSE_REQ *pSMB = NULL;
- CLOSE_RSP *pSMBr = NULL; /* BB removeme BB */
- int bytes_returned;

cFYI(1, ("In CIFSSMBFindClose"));
rc = small_smb_init(SMB_COM_FIND_CLOSE2, 1, tcon, (void **)&pSMB);
@@ -3647,16 +3650,13 @@ CIFSFindClose(const int xid, struct cifsTconInfo *tcon, const __u16 searchHandle
if (rc)
return rc;

- pSMBr = (CLOSE_RSP *)pSMB; /* BB removeme BB */
pSMB->FileID = searchHandle;
pSMB->ByteCount = 0;
- rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned, 0);
+ rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
if (rc) {
cERROR(1, ("Send error in FindClose = %d", rc));
}
cifs_stats_inc(&tcon->num_fclose);
- cifs_small_buf_release(pSMB);

/* Since session is dead, search handle closed on server already */
if (rc == -EAGAIN)
@@ -4571,11 +4571,9 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size,
__u16 fid, __u32 pid_of_opener, int SetAllocation)
{
struct smb_com_transaction2_sfi_req *pSMB = NULL;
- struct smb_com_transaction2_sfi_rsp *pSMBr = NULL;
char *data_offset;
struct file_end_of_file_info *parm_data;
int rc = 0;
- int bytes_returned = 0;
__u16 params, param_offset, offset, byte_count, count;

cFYI(1, ("SetFileSize (via SetFileInfo) %lld",
@@ -4585,8 +4583,6 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size,
if (rc)
return rc;

- pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB;
-
pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));

@@ -4637,17 +4633,13 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size,
pSMB->Reserved4 = 0;
pSMB->hdr.smb_buf_length += byte_count;
pSMB->ByteCount = cpu_to_le16(byte_count);
- rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned, 0);
+ rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
if (rc) {
cFYI(1,
("Send error in SetFileInfo (SetFileSize) = %d",
rc));
}

- if (pSMB)
- cifs_small_buf_release(pSMB);
-
/* Note: On -EAGAIN error only caller can retry on handle based calls
since file handle passed in no longer valid */

@@ -4665,10 +4657,8 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_I
__u16 fid)
{
struct smb_com_transaction2_sfi_req *pSMB = NULL;
- struct smb_com_transaction2_sfi_rsp *pSMBr = NULL;
char *data_offset;
int rc = 0;
- int bytes_returned = 0;
__u16 params, param_offset, offset, byte_count, count;

cFYI(1, ("Set Times (via SetFileInfo)"));
@@ -4677,8 +4667,6 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_I
if (rc)
return rc;

- pSMBr = (struct smb_com_transaction2_sfi_rsp *)pSMB;
-
/* At this point there is no need to override the current pid
with the pid of the opener, but that could change if we someday
use an existing handle (rather than opening one on the fly) */
@@ -4718,14 +4706,11 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon, const FILE_BASIC_I
pSMB->hdr.smb_buf_length += byte_count;
pSMB->ByteCount = cpu_to_le16(byte_count);
memcpy(data_offset,data,sizeof(FILE_BASIC_INFO));
- rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned, 0);
+ rc = SendReceiveNoRsp(xid, tcon->ses, (struct smb_hdr *) pSMB, 0);
if (rc) {
cFYI(1,("Send error in Set Time (SetFileInfo) = %d",rc));
}

- cifs_small_buf_release(pSMB);
-
/* Note: On -EAGAIN error only caller can retry on handle based calls
since file handle passed in no longer valid */

@@ -5016,7 +5001,8 @@ int CIFSSMBNotify(const int xid, struct cifsTconInfo *tcon,
pSMB->ByteCount = 0;

rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
- (struct smb_hdr *) pSMBr, &bytes_returned, -1);
+ (struct smb_hdr *)pSMBr, &bytes_returned,
+ CIFS_ASYNC_OP);
if (rc) {
cFYI(1, ("Error in Notify = %d", rc));
} else {
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index f4e9266..8579c9e 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2273,7 +2273,7 @@ CIFSSessSetup(unsigned int xid, struct cifsSesInfo *ses,
pSMB->req_no_secext.ByteCount = cpu_to_le16(count);

rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
- &bytes_returned, 1);
+ &bytes_returned, CIFS_LONG_OP);
if (rc) {
/* rc = map_smb_to_linux_error(smb_buffer_response); now done in SendReceive */
} else if ((smb_buffer_response->WordCount == 3)
@@ -2559,7 +2559,7 @@ CIFSNTLMSSPNegotiateSessSetup(unsigned int xid,
pSMB->req.ByteCount = cpu_to_le16(count);

rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
- &bytes_returned, 1);
+ &bytes_returned, CIFS_LONG_OP);

if (smb_buffer_response->Status.CifsError ==
cpu_to_le32(NT_STATUS_MORE_PROCESSING_REQUIRED))
@@ -2985,7 +2985,7 @@ CIFSNTLMSSPAuthSessSetup(unsigned int xid, struct cifsSesInfo *ses,
pSMB->req.ByteCount = cpu_to_le16(count);

rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response,
- &bytes_returned, 1);
+ &bytes_returned, CIFS_LONG_OP);
if (rc) {
/* rc = map_smb_to_linux_error(smb_buffer_response); *//* done in SendReceive now */
} else if ((smb_buffer_response->WordCount == 3)
@@ -3256,7 +3256,8 @@ CIFSTCon(unsigned int xid, struct cifsSesInfo *ses,
pSMB->hdr.smb_buf_length += count;
pSMB->ByteCount = cpu_to_le16(count);

- rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, &length, 0);
+ rc = SendReceive(xid, ses, smb_buffer, smb_buffer_response, &length,
+ CIFS_STD_OP);

/* if (rc) rc = map_smb_to_linux_error(smb_buffer_response); */
/* above now done in SendReceive */
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 94d5b49..a2c9e7a 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -809,9 +809,9 @@ ssize_t cifs_user_write(struct file *file, const char __user *write_data,
xid = GetXid();

if (*poffset > file->f_path.dentry->d_inode->i_size)
- long_op = 2; /* writes past end of file can take a long time */
+ long_op = CIFS_VLONG_OP; /* writes past EOF take long time */
else
- long_op = 1;
+ long_op = CIFS_LONG_OP;

for (total_written = 0; write_size > total_written;
total_written += bytes_written) {
@@ -858,7 +858,7 @@ ssize_t cifs_user_write(struct file *file, const char __user *write_data,
}
} else
*poffset += bytes_written;
- long_op = FALSE; /* subsequent writes fast -
+ long_op = CIFS_STD_OP; /* subsequent writes fast -
15 seconds is plenty */
}

@@ -908,9 +908,9 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
xid = GetXid();

if (*poffset > file->f_path.dentry->d_inode->i_size)
- long_op = 2; /* writes past end of file can take a long time */
+ long_op = CIFS_VLONG_OP; /* writes past EOF can be slow */
else
- long_op = 1;
+ long_op = CIFS_LONG_OP;

for (total_written = 0; write_size > total_written;
total_written += bytes_written) {
@@ -976,7 +976,7 @@ static ssize_t cifs_write(struct file *file, const char *write_data,
}
} else
*poffset += bytes_written;
- long_op = FALSE; /* subsequent writes fast -
+ long_op = CIFS_STD_OP; /* subsequent writes fast -
15 seconds is plenty */
}

@@ -1276,7 +1276,7 @@ retry:
open_file->netfid,
bytes_to_write, offset,
&bytes_written, iov, n_iov,
- 1);
+ CIFS_LONG_OP);
atomic_dec(&open_file->wrtPending);
if (rc || bytes_written < bytes_to_write) {
cERROR(1,("Write2 ret %d, written = %d",
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 7584646..9834895 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -489,7 +489,8 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,

iov[1].iov_base = str_area;
iov[1].iov_len = count;
- rc = SendReceive2(xid, ses, iov, 2 /* num_iovecs */, &resp_buf_type, 0);
+ rc = SendReceive2(xid, ses, iov, 2 /* num_iovecs */, &resp_buf_type,
+ CIFS_STD_OP /* not long */ | CIFS_LOG_ERROR);
/* SMB request buf freed in SendReceive2 */

cFYI(1,("ssetup rc from sendrecv2 is %d",rc));
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 5f46845..473962f 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -308,7 +308,7 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec,

static int wait_for_free_request(struct cifsSesInfo *ses, const int long_op)
{
- if(long_op == -1) {
+ if (long_op == CIFS_ASYNC_OP) {
/* oplock breaks must not be held up */
atomic_inc(&ses->server->inFlight);
} else {
@@ -337,7 +337,7 @@ static int wait_for_free_request(struct cifsSesInfo *ses, const int long_op)
they are allowed to block on server */

/* update # of requests on the wire to server */
- if (long_op < 3)
+ if (long_op != CIFS_BLOCKING_OP)
atomic_inc(&ses->server->inFlight);
spin_unlock(&GlobalMid_Lock);
break;
@@ -416,17 +416,48 @@ static int wait_for_response(struct cifsSesInfo *ses,
}
}

+
+/*
+ *
+ * Send an SMB Request. No response info (other than return code)
+ * needs to be parsed.
+ *
+ * flags indicate the type of request buffer and how long to wait
+ * and whether to log NT STATUS code (error) before mapping it to POSIX error
+ *
+ */
+int
+SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses,
+ struct smb_hdr *in_buf, int flags)
+{
+ int rc;
+ struct kvec iov[1];
+ int resp_buf_type;
+
+ iov[0].iov_base = (char *)in_buf;
+ iov[0].iov_len = in_buf->smb_buf_length + 4;
+ flags |= CIFS_NO_RESP;
+ rc = SendReceive2(xid, ses, iov, 1, &resp_buf_type, flags);
+#ifdef CONFIG_CIFS_DEBUG2
+ cFYI(1, ("SendRcvNoR flags %d rc %d", flags, rc));
+#endif
+ return rc;
+}
+
int
SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
struct kvec *iov, int n_vec, int * pRespBufType /* ret */,
- const int long_op)
+ const int flags)
{
int rc = 0;
+ int long_op;
unsigned int receive_len;
unsigned long timeout;
struct mid_q_entry *midQ;
struct smb_hdr *in_buf = iov[0].iov_base;

+ long_op = flags & CIFS_TIMEOUT_MASK;
+
*pRespBufType = CIFS_NO_BUFFER; /* no response buf yet */

if ((ses == NULL) || (ses->server == NULL)) {
@@ -485,15 +516,22 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
if(rc < 0)
goto out;

- if (long_op == -1)
- goto out;
- else if (long_op == 2) /* writes past end of file can take loong time */
+ if (long_op == CIFS_STD_OP)
+ timeout = 15 * HZ;
+ else if (long_op == CIFS_VLONG_OP) /* e.g. slow writes past EOF */
timeout = 180 * HZ;
- else if (long_op == 1)
+ else if (long_op == CIFS_LONG_OP)
timeout = 45 * HZ; /* should be greater than
servers oplock break timeout (about 43 seconds) */
- else
- timeout = 15 * HZ;
+ else if (long_op == CIFS_ASYNC_OP)
+ goto out;
+ else if (long_op == CIFS_BLOCKING_OP)
+ timeout = 0x7FFFFFFF; /* large, but not so large as to wrap */
+ else {
+ cERROR(1, ("unknown timeout flag %d", long_op));
+ rc = -EIO;
+ goto out;
+ }

/* wait for 15 seconds or until woken up due to response arriving or
due to last connection to this server being unmounted */
@@ -578,8 +616,10 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
(2 * midQ->resp_buf->WordCount) + 2 /* bcc */ )
BCC(midQ->resp_buf) =
le16_to_cpu(BCC_LE(midQ->resp_buf));
- midQ->resp_buf = NULL; /* mark it so will not be freed
- by DeleteMidQEntry */
+ if ((flags & CIFS_NO_RESP) == 0)
+ midQ->resp_buf = NULL; /* mark it so buf will
+ not be freed by
+ DeleteMidQEntry */
} else {
rc = -EIO;
cFYI(1,("Bad MID state?"));
@@ -667,17 +707,25 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
if(rc < 0)
goto out;

- if (long_op == -1)
+ if (long_op == CIFS_STD_OP)
+ timeout = 15 * HZ;
+ /* wait for 15 seconds or until woken up due to response arriving or
+ due to last connection to this server being unmounted */
+ else if (long_op == CIFS_ASYNC_OP)
goto out;
- else if (long_op == 2) /* writes past end of file can take loong time */
+ else if (long_op == CIFS_VLONG_OP) /* writes past EOF can be slow */
timeout = 180 * HZ;
- else if (long_op == 1)
+ else if (long_op == CIFS_LONG_OP)
timeout = 45 * HZ; /* should be greater than
servers oplock break timeout (about 43 seconds) */
- else
- timeout = 15 * HZ;
- /* wait for 15 seconds or until woken up due to response arriving or
- due to last connection to this server being unmounted */
+ else if (long_op == CIFS_BLOCKING_OP)
+ timeout = 0x7FFFFFFF; /* large but no so large as to wrap */
+ else {
+ cERROR(1, ("unknown timeout flag %d", long_op));
+ rc = -EIO;
+ goto out;
+ }
+
if (signal_pending(current)) {
/* if signal pending do not hold up user for full smb timeout
but we still give response a chance to complete */
@@ -817,7 +865,7 @@ send_lock_cancel(const unsigned int xid, struct cifsTconInfo *tcon,
pSMB->hdr.Mid = GetNextMid(ses->server);

return SendReceive(xid, ses, in_buf, out_buf,
- &bytes_returned, 0);
+ &bytes_returned, CIFS_STD_OP);
}

int
@@ -849,7 +897,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon,
to the same server. We may make this configurable later or
use ses->maxReq */

- rc = wait_for_free_request(ses, 3);
+ rc = wait_for_free_request(ses, CIFS_BLOCKING_OP);
if (rc)
return rc;

diff --git a/mm/slab.c b/mm/slab.c
index b344e67..42bf493 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2933,11 +2933,10 @@ static void *cache_alloc_refill(struct kmem_cache *cachep, gfp_t flags)
struct array_cache *ac;
int node;

- node = numa_node_id();
-
+retry:
check_irq_off();
+ node = numa_node_id();
ac = cpu_cache_get(cachep);
-retry:
batchcount = ac->batchcount;
if (!ac->touched && batchcount > BATCHREFILL_LIMIT) {
/*
\
 
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