From 4b8f930ff83aaed39fd5f935aeacc25f2549a51e Mon Sep 17 00:00:00 2001 From: Steve French Date: Sun, 26 Feb 2006 16:41:18 +0000 Subject: [PATCH] [CIFS] Free small buffers earlier so we exceed the cifs small req buffer pool less often. Signed-off-by: Steve French --- fs/cifs/cifssmb.c | 6 +++--- fs/cifs/ntlmssp.c | 3 +-- fs/cifs/transport.c | 22 ++++++++++++++-------- 3 files changed, 18 insertions(+), 13 deletions(-) diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 9d7bbd225eff..e567f4e6196a 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 @@ CIFSSMBGetCIFSACL(const int xid, struct cifsTconInfo *tcon, __u16 fid, 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 4aabe2d7cb7b..78866f925747 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 b12cb8a7da7c..3da80409466c 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 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, 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); -- GitLab