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| author | Vladimir Murzin <vladimir.murzin@arm.com> | 2015-06-19 15:28:03 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2015-06-19 16:26:15 +0100 |
| commit | 86dca36e6ba019650a94cadf922ea3d06dec0182 (patch) | |
| tree | 1880f9334e60f0255403b9482cf2fac1d0355479 /arch/arm64/mm | |
| parent | 9e793ab84ed482047f7226595313f0f3a0aa6854 (diff) | |
| download | talos-obmc-linux-86dca36e6ba019650a94cadf922ea3d06dec0182.tar.gz talos-obmc-linux-86dca36e6ba019650a94cadf922ea3d06dec0182.zip | |
arm64: use private ratelimit state along with show_unhandled_signals
printk_ratelimit() shares the ratelimiting state with other callers what
may lead to scenarios where at the time we want to print out debug
information we already limited, so nothing appears in the dmesg - this
makes exception-trace quite poor helper in debugging.
Additionally, we have imbalance with some messages limited with global
ratelimit state and other messages limited with their private state
defined via pr_*_ratelimited().
To address this inconsistency show_unhandled_signals_ratelimited()
macro is introduced and caller sites are converted to use it.
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/mm')
| -rw-r--r-- | arch/arm64/mm/fault.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index e8c608c893cf..66bd92ab6f7b 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -115,8 +115,7 @@ static void __do_user_fault(struct task_struct *tsk, unsigned long addr, { struct siginfo si; - if (show_unhandled_signals && unhandled_signal(tsk, sig) && - printk_ratelimit()) { + if (show_unhandled_signals_ratelimited() && unhandled_signal(tsk, sig)) { pr_info("%s[%d]: unhandled %s (%d) at 0x%08lx, esr 0x%03x\n", tsk->comm, task_pid_nr(tsk), fault_name(esr), sig, addr, esr); |
