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| author | Jeff Layton <jlayton@redhat.com> | 2011-01-28 07:08:28 -0500 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2011-01-31 04:24:38 +0000 |
| commit | 2db7c5815555d8daabf7d4ab1253ce690852c140 (patch) | |
| tree | f93abfb6d900da8ebd851703784d45d2cd54600b /fs/cifs | |
| parent | 1be912dde772b77aaaa21770eeabb0a7a5e297a6 (diff) | |
| download | linux-2db7c5815555d8daabf7d4ab1253ce690852c140.tar.gz linux-2db7c5815555d8daabf7d4ab1253ce690852c140.tar.bz2 linux-2db7c5815555d8daabf7d4ab1253ce690852c140.zip | |
cifs: send an NT_CANCEL request when a process is signalled
Use the new send_nt_cancel function to send an NT_CANCEL when the
process is delivered a fatal signal. This is a "best effort" enterprise
however, so don't bother to check the return code. There's nothing we
can reasonably do if it fails anyway.
Reviewed-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs')
| -rw-r--r-- | fs/cifs/transport.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index 9b2d0373a8a7..bdaa4aa58b03 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -570,20 +570,25 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, #endif mutex_unlock(&ses->server->srv_mutex); - cifs_small_buf_release(in_buf); - if (rc < 0) + if (rc < 0) { + cifs_small_buf_release(in_buf); goto out; + } - if (long_op == CIFS_ASYNC_OP) + if (long_op == CIFS_ASYNC_OP) { + cifs_small_buf_release(in_buf); goto out; + } rc = wait_for_response(ses->server, midQ); if (rc != 0) { + send_nt_cancel(ses->server, in_buf, midQ); spin_lock(&GlobalMid_Lock); if (midQ->midState == MID_REQUEST_SUBMITTED) { midQ->callback = DeleteMidQEntry; spin_unlock(&GlobalMid_Lock); + cifs_small_buf_release(in_buf); atomic_dec(&ses->server->inFlight); wake_up(&ses->server->request_q); return rc; @@ -591,6 +596,8 @@ SendReceive2(const unsigned int xid, struct cifsSesInfo *ses, spin_unlock(&GlobalMid_Lock); } + cifs_small_buf_release(in_buf); + rc = sync_mid_result(midQ, ses->server); if (rc != 0) { atomic_dec(&ses->server->inFlight); @@ -734,6 +741,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses, rc = wait_for_response(ses->server, midQ); if (rc != 0) { + send_nt_cancel(ses->server, in_buf, midQ); spin_lock(&GlobalMid_Lock); if (midQ->midState == MID_REQUEST_SUBMITTED) { /* no longer considered to be "in-flight" */ @@ -943,6 +951,7 @@ SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon, rc = wait_for_response(ses->server, midQ); if (rc) { + send_nt_cancel(ses->server, in_buf, midQ); spin_lock(&GlobalMid_Lock); if (midQ->midState == MID_REQUEST_SUBMITTED) { /* no longer considered to be "in-flight" */ |