UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

[IA64] trivial cleanup for perfmon.c 

Fix a typo, and coding style cleanups for pfm_handle_work().

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Hidetoshi Seto 2008-05-09 15:27:09 +09:00 committed by Tony Luck
parent 2e513fe490
commit 0fb232fdb2
1 changed files with 10 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
arch/ia64/kernel/perfmon.c
View File

@ -5013,12 +5013,13 @@ pfm_context_force_terminate(pfm_context_t *ctx, struct pt_regs *regs)
}
static int pfm_ovfl_notify_user(pfm_context_t *ctx, unsigned long ovfl_pmds);
/*
* pfm_handle_work() can be called with interrupts enabled
* (TIF_NEED_RESCHED) or disabled. The down_interruptible
* call may sleep, therefore we must re-enable interrupts
* to avoid deadlocks. It is safe to do so because this function
* is called ONLY when returning to user level (PUStk=1), in which case
* is called ONLY when returning to user level (pUStk=1), in which case
* there is no risk of kernel stack overflow due to deep
* interrupt nesting.
*/
@ -5034,7 +5035,8 @@ pfm_handle_work(void)
ctx = PFM_GET_CTX(current);
if (ctx == NULL) {
printk(KERN_ERR "perfmon: [%d] has no PFM context\n", task_pid_nr(current));
printk(KERN_ERR "perfmon: [%d] has no PFM context\n",
task_pid_nr(current));
return;
}
@ -5058,11 +5060,12 @@ pfm_handle_work(void)
/*
* must be done before we check for simple-reset mode
*/
if (ctx->ctx_fl_going_zombie || ctx->ctx_state == PFM_CTX_ZOMBIE) goto do_zombie;
if (ctx->ctx_fl_going_zombie || ctx->ctx_state == PFM_CTX_ZOMBIE)
goto do_zombie;
//if (CTX_OVFL_NOBLOCK(ctx)) goto skip_blocking;
if (reason == PFM_TRAP_REASON_RESET) goto skip_blocking;
if (reason == PFM_TRAP_REASON_RESET)
goto skip_blocking;
/*
* restore interrupt mask to what it was on entry.
@ -5110,7 +5113,8 @@ do_zombie:
/*
* in case of interruption of down() we don't restart anything
*/
if (ret < 0) goto nothing_to_do;
if (ret < 0)
goto nothing_to_do;
skip_blocking:
pfm_resume_after_ovfl(ctx, ovfl_regs, regs);