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Shutemov" , Matthew Wilcox , Pavel Emelyanov , Brian Geffon , Maya Gokhale , Denis Plotnikov , Andrea Arcangeli , Johannes Weiner , "Dr . David Alan Gilbert" , Linus Torvalds , Mike Kravetz , Marty McFadden , David Hildenbrand , Bobby Powers , Mel Gorman Subject: [PATCH RESEND v6 07/16] powerpc/mm: Use helper fault_signal_pending() Date: Thu, 20 Feb 2020 11:02:22 -0500 Message-Id: <20200220160222.9422-1-peterx@redhat.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200220155353.8676-1-peterx@redhat.com> References: MIME-Version: 1.0 X-MC-Unique: oH3arNu-ObuNwN-ub6P-Hg-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Let powerpc code to use the new helper, by moving the signal handling earlier before the retry logic. Signed-off-by: Peter Xu --- arch/powerpc/mm/fault.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 8db0507619e2..0868172ce4e3 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -582,6 +582,9 @@ static int __do_page_fault(struct pt_regs *regs, unsign= ed long address, =20 =09major |=3D fault & VM_FAULT_MAJOR; =20 +=09if (fault_signal_pending(fault, regs)) +=09=09return user_mode(regs) ? 0 : SIGBUS; + =09/* =09 * Handle the retry right now, the mmap_sem has been released in that =09 * case. @@ -595,15 +598,8 @@ static int __do_page_fault(struct pt_regs *regs, unsig= ned long address, =09=09=09 */ =09=09=09flags &=3D ~FAULT_FLAG_ALLOW_RETRY; =09=09=09flags |=3D FAULT_FLAG_TRIED; -=09=09=09if (!fatal_signal_pending(current)) -=09=09=09=09goto retry; +=09=09=09goto retry; =09=09} - -=09=09/* -=09=09 * User mode? Just return to handle the fatal exception otherwise -=09=09 * return to bad_page_fault -=09=09 */ -=09=09return is_user ? 0 : SIGBUS; =09} =20 =09up_read(¤t->mm->mmap_sem); --=20 2.24.1