From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org,
linux-rt-users <linux-rt-users@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Carsten Emde <C.Emde@osadl.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
John Kacur <jkacur@redhat.com>,
Paul Gortmaker <paul.gortmaker@windriver.com>,
Julia Cartwright <julia@ni.com>,
Daniel Wagner <daniel.wagner@siemens.com>,
tom.zanussi@linux.intel.com, Alex Shi <alex.shi@linaro.org>,
stable-rt@vger.kernel.org
Subject: [PATCH RT 04/13] fs: convert two more BH_Uptodate_Lock related bitspinlocks
Date: Wed, 17 Jan 2018 10:14:08 -0500 [thread overview]
Message-ID: <20180117151431.119208637@goodmis.org> (raw)
In-Reply-To: 20180117151404.093229667@goodmis.org
[-- Attachment #1: 0004-fs-convert-two-more-BH_Uptodate_Lock-related-bitspin.patch --]
[-- Type: text/plain, Size: 1483 bytes --]
3.18.91-rt98-rc1 stable review patch.
If anyone has any objections, please let me know.
------------------
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We convert all BH_Uptodate_Lock based bit-spinlocks to use
bh_uptodate_lock_irqsave() instead. Those two were introduced after the
initial change in -RT and were not noticed before.
Cc: stable-rt@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
fs/ext4/page-io.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index b24a2541a9ba..662c027417ff 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -87,8 +87,7 @@ static void ext4_finish_bio(struct bio *bio)
* We check all buffers in the page under BH_Uptodate_Lock
* to avoid races with other end io clearing async_write flags
*/
- local_irq_save(flags);
- bit_spin_lock(BH_Uptodate_Lock, &head->b_state);
+ flags = bh_uptodate_lock_irqsave(head);
do {
if (bh_offset(bh) < bio_start ||
bh_offset(bh) + bh->b_size > bio_end) {
@@ -100,8 +99,7 @@ static void ext4_finish_bio(struct bio *bio)
if (error)
buffer_io_error(bh);
} while ((bh = bh->b_this_page) != head);
- bit_spin_unlock(BH_Uptodate_Lock, &head->b_state);
- local_irq_restore(flags);
+ bh_uptodate_unlock_irqrestore(head, flags);
if (!under_io)
end_page_writeback(page);
}
--
2.13.2
next prev parent reply other threads:[~2018-01-17 15:19 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-17 15:14 [PATCH RT 00/13] Linux 3.18.91-rt98-rc1 Steven Rostedt
2018-01-17 15:14 ` [PATCH RT 01/13] rtmutex: Make lock_killable work Steven Rostedt
2018-01-17 15:14 ` [PATCH RT 02/13] random: avoid preempt_disable()ed section Steven Rostedt
2018-01-17 15:14 ` [PATCH RT 03/13] sched: Prevent task state corruption by spurious lock wakeup Steven Rostedt
2018-01-17 15:14 ` Steven Rostedt [this message]
2018-01-17 15:14 ` [PATCH RT 05/13] md/raid5: do not disable interrupts Steven Rostedt
2018-01-17 15:14 ` [PATCH RT 06/13] locking/rt-mutex: fix deadlock in device mapper / block-IO Steven Rostedt
2018-01-17 15:14 ` [PATCH RT 07/13] Revert "fs: jbd2: pull your plug when waiting for space" Steven Rostedt
2018-01-17 15:46 ` Sebastian Andrzej Siewior
2018-01-17 17:13 ` Steven Rostedt
2018-01-17 15:14 ` [PATCH RT 08/13] cpu_pm: replace raw_notifier to atomic_notifier Steven Rostedt
2018-01-17 15:14 ` [PATCH RT 09/13] kernel/hrtimer: migrate deferred timer on CPU down Steven Rostedt
2018-01-17 15:14 ` [PATCH RT 10/13] kernel/hrtimer/hotplug: dont wake ktimersoftd while holding the hrtimer base lock Steven Rostedt
2018-01-17 15:14 ` [PATCH RT 11/13] rt/locking: allow recursive local_trylock() Steven Rostedt
2018-01-17 15:14 ` [PATCH RT 12/13] net: use trylock in icmp_sk Steven Rostedt
2018-01-17 15:14 ` [PATCH RT 13/13] Linux 3.18.91-rt98-rc1 Steven Rostedt
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