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authorSteve French <sfrench@us.ibm.com>2006-02-26 16:41:18 +0000
committerSteve French <sfrench@us.ibm.com>2006-02-26 16:41:18 +0000
commit4b8f930ff83aaed39fd5f935aeacc25f2549a51e (patch)
tree364547184a71367a12bb5eee44569d305c8efdd6 /fs/cifs
parent184ed2110ae6bfdb8dc91085149f04f2f4d2169e (diff)
[CIFS] Free small buffers earlier so we exceed the cifs
small req buffer pool less often. Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/cifssmb.c6
-rw-r--r--fs/cifs/ntlmssp.c3
-rw-r--r--fs/cifs/transport.c22
3 files changed, 18 insertions, 13 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 9d7bbd225ef..e567f4e6196 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -1070,7 +1070,7 @@ CIFSSMBRead(const int xid, struct cifsTconInfo *tcon,
}
}
- cifs_small_buf_release(pSMB);
+/* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */
if(*buf) {
if(resp_buf_type == CIFS_SMALL_BUFFER)
cifs_small_buf_release(iov[0].iov_base);
@@ -1274,7 +1274,7 @@ CIFSSMBWrite2(const int xid, struct cifsTconInfo *tcon,
*nbytes += le16_to_cpu(pSMBr->Count);
}
- cifs_small_buf_release(pSMB);
+/* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */
if(resp_buf_type == CIFS_SMALL_BUFFER)
cifs_small_buf_release(iov[0].iov_base);
else if(resp_buf_type == CIFS_LARGE_BUFFER)
@@ -2606,7 +2606,7 @@ qsec_out:
cifs_small_buf_release(iov[0].iov_base);
else if(buf_type == CIFS_LARGE_BUFFER)
cifs_buf_release(iov[0].iov_base);
- cifs_small_buf_release(pSMB);
+/* cifs_small_buf_release(pSMB); */ /* Freed earlier now in SendReceive2 */
return rc;
}
diff --git a/fs/cifs/ntlmssp.c b/fs/cifs/ntlmssp.c
index 4aabe2d7cb7..78866f92574 100644
--- a/fs/cifs/ntlmssp.c
+++ b/fs/cifs/ntlmssp.c
@@ -122,8 +122,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, const int type,
/* rc = SendReceive2(xid, ses, iov, num_iovecs, &resp_buf_type, 0); */
-
- cifs_small_buf_release(smb_buffer);
+ /* SMB request buf freed in SendReceive2 */
return rc;
}
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index b12cb8a7da7..3da80409466 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -309,17 +309,16 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
*pRespBufType = CIFS_NO_BUFFER; /* no response buf yet */
- if (ses == NULL) {
- cERROR(1,("Null smb session"));
- return -EIO;
- }
- if(ses->server == NULL) {
- cERROR(1,("Null tcp session"));
+ if ((ses == NULL) || (ses->server == NULL)) {
+ cifs_small_buf_release(in_buf);
+ cERROR(1,("Null session"));
return -EIO;
}
- if(ses->server->tcpStatus == CifsExiting)
+ if(ses->server->tcpStatus == CifsExiting) {
+ cifs_small_buf_release(in_buf);
return -ENOENT;
+ }
/* Ensure that we do not send more than 50 overlapping requests
to the same server. We may make this configurable later or
@@ -346,6 +345,7 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
} else {
if(ses->server->tcpStatus == CifsExiting) {
spin_unlock(&GlobalMid_Lock);
+ cifs_small_buf_release(in_buf);
return -ENOENT;
}
@@ -385,6 +385,7 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
midQ = AllocMidQEntry(in_buf, ses);
if (midQ == NULL) {
up(&ses->server->tcpSem);
+ cifs_small_buf_release(in_buf);
/* If not lock req, update # of requests on wire to server */
if(long_op < 3) {
atomic_dec(&ses->server->inFlight);
@@ -408,14 +409,18 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
if(rc < 0) {
DeleteMidQEntry(midQ);
up(&ses->server->tcpSem);
+ cifs_small_buf_release(in_buf);
/* If not lock req, update # of requests on wire to server */
if(long_op < 3) {
atomic_dec(&ses->server->inFlight);
wake_up(&ses->server->request_q);
}
return rc;
- } else
+ } else {
up(&ses->server->tcpSem);
+ cifs_small_buf_release(in_buf);
+ }
+
if (long_op == -1)
goto cifs_no_response_exit2;
else if (long_op == 2) /* writes past end of file can take loong time */
@@ -543,6 +548,7 @@ cifs_no_response_exit2:
out_unlock2:
up(&ses->server->tcpSem);
+ cifs_small_buf_release(in_buf);
/* If not lock req, update # of requests on wire to server */
if(long_op < 3) {
atomic_dec(&ses->server->inFlight);