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r21724: Optimization pointed out by Volker. If we don't

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have any outstanding locks or blocking locks then
we don't need to read the lock db. on close.
Jeremy.
This commit is contained in:
Jeremy Allison 2007-03-06 21:59:51 +00:00 committed by Gerald (Jerry) Carter
parent f3421ae4cf
commit 1b063496f9
2 changed files with 21 additions and 0 deletions
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1
source/include/smb.h
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@ -501,6 +501,7 @@ typedef struct files_struct {
int sent_oplock_break;
struct timed_event *oplock_timeout;
struct lock_struct last_lock_failure;
int current_lock_count; /* Count the number of outstanding locks and pending locks. */
struct share_mode_entry *pending_break_messages;
int num_pending_break_messages;

20
source/locking/locking.c
View File

@ -222,6 +222,12 @@ struct byte_range_lock *do_lock(files_struct *fsp,
lock_flav,
blocking_lock);
/* blocking ie. pending, locks also count here,
* as this is an efficiency counter to avoid checking
* the lock db. on close. JRA. */
fsp->current_lock_count++;
return br_lck;
}
@ -268,6 +274,9 @@ NTSTATUS do_unlock(files_struct *fsp,
return NT_STATUS_RANGE_NOT_LOCKED;
}
SMB_ASSERT(fsp->current_lock_count > 0);
fsp->current_lock_count--;
return NT_STATUS_OK;
}
@ -315,6 +324,9 @@ NTSTATUS do_lock_cancel(files_struct *fsp,
return NT_STATUS_DOS(ERRDOS, ERRcancelviolation);
}
SMB_ASSERT(fsp->current_lock_count > 0);
fsp->current_lock_count++;
return NT_STATUS_OK;
}
@ -330,6 +342,14 @@ void locking_close_file(files_struct *fsp)
return;
}
/* If we have not outstanding locks or pending
* locks then we don't need to look in the lock db.
*/
if (fsp->current_lock_count == 0) {
return;
}
br_lck = brl_get_locks(NULL,fsp);
if (br_lck) {