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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2012-09-18 17:04:37 +0900 |
|---|---|---|
| committer |   Paul Mundt <lethal@linux-sh.org> | 2012-09-18 17:04:37 +0900 |
| commit | 5e071e2b4b82599f07cce5e1d2d272feb462950c (patch) | |
| tree | a8113effc2ea9a29b876f2c08c87018dc5c9da5f /arch/sh/kernel/cpu/sh5 | |
| parent | sh: pfc: Release spinlock in sh_pfc_gpio_request_enable() error path (diff) | |
| download | linux-dev-5e071e2b4b82599f07cce5e1d2d272feb462950c.tar.xz linux-dev-5e071e2b4b82599f07cce5e1d2d272feb462950c.zip | |
sh: Fix up TIF_NOTIFY_RESUME sans TIF_SIGPENDING handling.
As Al notes, we missed a TIF_NOTIFY_RESUME check which caused any
handlers without TIF_SIGPENDING also set to skip the notification:
Looks like while it is in the relevant masks *and* checked in
do_notify_resume() both on 32bit and 64bit variants since commit
ab99c733ae73cce31f2a2434f7099564e5a73d95 ("sh: Make syscall tracer
use tracehook notifiers, add TIF_NOTIFY_RESUME.") they are
actually *not* reached without simulataneous SIGPENDING, since
the actual glue in the callers had not been updated back then and
still checks for _TIF_SIGPENDING alone when deciding whether to
hit do_notify_resume() or not.
Reported-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/cpu/sh5')
| -rw-r--r-- | arch/sh/kernel/cpu/sh5/entry.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S index b7cf6a547f11..7e605b95592a 100644 --- a/arch/sh/kernel/cpu/sh5/entry.S +++ b/arch/sh/kernel/cpu/sh5/entry.S @@ -933,7 +933,7 @@ ret_with_reschedule: pta restore_all, tr1 - movi _TIF_SIGPENDING, r8 + movi (_TIF_SIGPENDING|_TIF_NOTIFY_RESUME), r8 and r8, r7, r8 pta work_notifysig, tr0 bne r8, ZERO, tr0 |