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-rw-r--r--source3/include/smb_macros.h2
-rw-r--r--source3/locking/locking.c26
-rw-r--r--source3/param/loadparm.c8
-rw-r--r--source3/smbd/blocking.c6
-rw-r--r--source3/smbd/reply.c12
5 files changed, 44 insertions, 10 deletions
diff --git a/source3/include/smb_macros.h b/source3/include/smb_macros.h
index 3fdd90f510..c19be784a1 100644
--- a/source3/include/smb_macros.h
+++ b/source3/include/smb_macros.h
@@ -166,7 +166,7 @@
#define UNIXERROR(defclass,deferror) unix_error_packet(outbuf,defclass,deferror,__LINE__,__FILE__)
#define SMB_ROUNDUP(x,g) (((x)+((g)-1))&~((g)-1))
-#define SMB_ROUNDUP_ALLOCATION(s) (SMB_ROUNDUP((SMB_OFF_T)((s)+1), ((SMB_OFF_T)SMB_ROUNDUP_ALLOCATION_SIZE)))
+#define SMB_ROUNDUP_ALLOCATION(s) ((s) ? (SMB_ROUNDUP((SMB_OFF_T)((s)+1), ((SMB_OFF_T)SMB_ROUNDUP_ALLOCATION_SIZE))) : 0 )
/* Extra macros added by Ying Chen at IBM - speed increase by inlining. */
#define smb_buf(buf) (buf + smb_size + CVAL(buf,smb_wct)*2)
diff --git a/source3/locking/locking.c b/source3/locking/locking.c
index dd6ca62e70..8f3e4a278e 100644
--- a/source3/locking/locking.c
+++ b/source3/locking/locking.c
@@ -97,7 +97,7 @@ BOOL is_locked(files_struct *fsp,connection_struct *conn,
Utility function called by locking requests.
****************************************************************************/
-NTSTATUS do_lock(files_struct *fsp,connection_struct *conn, uint16 lock_pid,
+static NTSTATUS do_lock(files_struct *fsp,connection_struct *conn, uint16 lock_pid,
SMB_BIG_UINT count,SMB_BIG_UINT offset,enum brl_type lock_type)
{
NTSTATUS status;
@@ -142,6 +142,30 @@ NTSTATUS do_lock(files_struct *fsp,connection_struct *conn, uint16 lock_pid,
}
/****************************************************************************
+ Utility function called by locking requests. This is *DISGISTING*. It also
+ appears to be "What Windows Does" (tm). Andrew, ever wonder why Windows 2000
+ is so slow on the locking tests...... ? This is the reason. Much though I hate
+ it, we need this. JRA.
+****************************************************************************/
+
+NTSTATUS do_lock_spin(files_struct *fsp,connection_struct *conn, uint16 lock_pid,
+ SMB_BIG_UINT count,SMB_BIG_UINT offset,enum brl_type lock_type)
+{
+ int j, maxj = lp_lock_spin_count();
+ int sleeptime = lp_lock_sleep_time();
+ NTSTATUS status;
+
+ for (j = 0; j < maxj; j++) {
+ status = do_lock(fsp, conn, lock_pid, count, offset, lock_type);
+ if (!NT_STATUS_EQUAL(status, NT_STATUS_LOCK_NOT_GRANTED) &&
+ !NT_STATUS_EQUAL(status, NT_STATUS_FILE_LOCK_CONFLICT))
+ break;
+ usleep(sleeptime);
+ }
+ return status;
+}
+
+/****************************************************************************
Utility function called by unlocking requests.
****************************************************************************/
diff --git a/source3/param/loadparm.c b/source3/param/loadparm.c
index ec7d768023..12dedc7a01 100644
--- a/source3/param/loadparm.c
+++ b/source3/param/loadparm.c
@@ -198,6 +198,8 @@ typedef struct
int min_passwd_length;
int oplock_break_wait_time;
int winbind_cache_time;
+ int iLockSpinCount;
+ int iLockSpinTime;
#ifdef WITH_LDAP_SAM
char *szLdapMachineSuffix;
char *szLdapUserSuffix;
@@ -965,6 +967,8 @@ static struct parm_struct parm_table[] = {
{"fake oplocks", P_BOOL, P_LOCAL, &sDefault.bFakeOplocks, NULL, NULL, FLAG_SHARE},
{"kernel oplocks", P_BOOL, P_GLOBAL, &Globals.bKernelOplocks, NULL, NULL, FLAG_GLOBAL},
{"locking", P_BOOL, P_LOCAL, &sDefault.bLocking, NULL, NULL, FLAG_SHARE | FLAG_GLOBAL},
+ {"lock spin count", P_INTEGER, P_GLOBAL, &Globals.iLockSpinCount, NULL, NULL, FLAG_GLOBAL},
+ {"lock spin time", P_INTEGER, P_GLOBAL, &Globals.iLockSpinTime, NULL, NULL, FLAG_GLOBAL},
{"oplocks", P_BOOL, P_LOCAL, &sDefault.bOpLocks, NULL, NULL, FLAG_SHARE | FLAG_GLOBAL},
{"level2 oplocks", P_BOOL, P_LOCAL, &sDefault.bLevel2OpLocks, NULL, NULL, FLAG_SHARE | FLAG_GLOBAL},
@@ -1319,6 +1323,8 @@ static void init_globals(void)
Globals.min_passwd_length = MINPASSWDLENGTH; /* By Default, 5. */
Globals.oplock_break_wait_time = 0; /* By Default, 0 msecs. */
Globals.enhanced_browsing = True;
+ Globals.iLockSpinCount = 3; /* Try 2 times. */
+ Globals.iLockSpinTime = 10; /* usec. */
#ifdef MMAP_BLACKLIST
Globals.bUseMmap = False;
#else
@@ -1659,6 +1665,8 @@ FN_GLOBAL_INTEGER(lp_stat_cache_size, &Globals.stat_cache_size)
FN_GLOBAL_INTEGER(lp_map_to_guest, &Globals.map_to_guest)
FN_GLOBAL_INTEGER(lp_min_passwd_length, &Globals.min_passwd_length)
FN_GLOBAL_INTEGER(lp_oplock_break_wait_time, &Globals.oplock_break_wait_time)
+FN_GLOBAL_INTEGER(lp_lock_spin_count, &Globals.iLockSpinCount)
+FN_GLOBAL_INTEGER(lp_lock_sleep_time, &Globals.iLockSpinTime)
FN_LOCAL_STRING(lp_preexec, szPreExec)
FN_LOCAL_STRING(lp_postexec, szPostExec)
FN_LOCAL_STRING(lp_rootpreexec, szRootPreExec)
diff --git a/source3/smbd/blocking.c b/source3/smbd/blocking.c
index bc8c54caf7..d4a53d9a6d 100644
--- a/source3/smbd/blocking.c
+++ b/source3/smbd/blocking.c
@@ -279,7 +279,7 @@ static BOOL process_lockread(blocking_lock_record *blr)
numtoread = MIN(BUFFER_SIZE-outsize,numtoread);
data = smb_buf(outbuf) + 3;
- status = do_lock( fsp, conn, SVAL(inbuf,smb_pid), (SMB_BIG_UINT)numtoread,
+ status = do_lock_spin( fsp, conn, SVAL(inbuf,smb_pid), (SMB_BIG_UINT)numtoread,
(SMB_BIG_UINT)startpos, READ_LOCK);
if (NT_STATUS_V(status)) {
if ((errno != EACCES) && (errno != EAGAIN)) {
@@ -345,7 +345,7 @@ static BOOL process_lock(blocking_lock_record *blr)
offset = IVAL(inbuf,smb_vwv3);
errno = 0;
- status = do_lock(fsp, conn, SVAL(inbuf,smb_pid), (SMB_BIG_UINT)count,
+ status = do_lock_spin(fsp, conn, SVAL(inbuf,smb_pid), (SMB_BIG_UINT)count,
(SMB_BIG_UINT)offset, WRITE_LOCK);
if (NT_STATUS_IS_ERR(status)) {
if((errno != EACCES) && (errno != EAGAIN)) {
@@ -417,7 +417,7 @@ static BOOL process_lockingX(blocking_lock_record *blr)
* request would never have been queued. JRA.
*/
errno = 0;
- status = do_lock(fsp,conn,lock_pid,count,offset,
+ status = do_lock_spin(fsp,conn,lock_pid,count,offset,
((locktype & 1) ? READ_LOCK : WRITE_LOCK));
if (NT_STATUS_IS_ERR(status)) break;
}
diff --git a/source3/smbd/reply.c b/source3/smbd/reply.c
index 9d5d34e410..cbcad435d2 100644
--- a/source3/smbd/reply.c
+++ b/source3/smbd/reply.c
@@ -1545,7 +1545,7 @@ int reply_lockread(connection_struct *conn, char *inbuf,char *outbuf, int length
* for a write lock. JRA.
*/
- status = do_lock(fsp, conn, SVAL(inbuf,smb_pid),
+ status = do_lock_spin(fsp, conn, SVAL(inbuf,smb_pid),
(SMB_BIG_UINT)numtoread, (SMB_BIG_UINT)startpos, WRITE_LOCK);
if (NT_STATUS_V(status)) {
@@ -2366,7 +2366,7 @@ int reply_lock(connection_struct *conn,
DEBUG(3,("lock fd=%d fnum=%d offset=%.0f count=%.0f\n",
fsp->fd, fsp->fnum, (double)offset, (double)count));
- status = do_lock(fsp, conn, SVAL(inbuf,smb_pid), count, offset, WRITE_LOCK);
+ status = do_lock_spin(fsp, conn, SVAL(inbuf,smb_pid), count, offset, WRITE_LOCK);
if (NT_STATUS_V(status)) {
if (lp_blocking_locks(SNUM(conn))) {
/*
@@ -3808,6 +3808,7 @@ no oplock granted on this file (%s).\n", fsp->fnum, fsp->fsp_name));
}
/* Setup the timeout in seconds. */
+
lock_timeout = ((lock_timeout == -1) ? -1 : lock_timeout/1000);
/* Now do any requested locks */
@@ -3829,10 +3830,11 @@ no oplock granted on this file (%s).\n", fsp->fnum, fsp->fsp_name));
return ERROR_DOS(ERRDOS,ERRnoaccess);
}
- DEBUG(10,("reply_lockingX: lock start=%.0f, len=%.0f for pid %u, file %s\n",
- (double)offset, (double)count, (unsigned int)lock_pid, fsp->fsp_name ));
+ DEBUG(10,("reply_lockingX: lock start=%.0f, len=%.0f for pid %u, file %s timeout = %d\n",
+ (double)offset, (double)count, (unsigned int)lock_pid,
+ (int)lock_timeout, fsp->fsp_name ));
- status = do_lock(fsp,conn,lock_pid, count,offset,
+ status = do_lock_spin(fsp,conn,lock_pid, count,offset,
((locktype & 1) ? READ_LOCK : WRITE_LOCK));
if (NT_STATUS_V(status)) {
if ((lock_timeout != 0) && lp_blocking_locks(SNUM(conn))) {
generated by cgit (git 2.34.1) at 2024-12-17 01:52:08 +0000