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 4/7] fs: convert two more BH_Uptodate_Lock related bitspinlocks
Date: Thu, 23 Nov 2017 00:23:21 -0500 [thread overview]
Message-ID: <20171123052630.020954419@goodmis.org> (raw)
In-Reply-To: 20171123052317.319740795@goodmis.org
[-- Attachment #1: 0004-fs-convert-two-more-BH_Uptodate_Lock-related-bitspin.patch --]
[-- Type: text/plain, Size: 2347 bytes --]
4.9.61-rt52-rc2 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 ++----
fs/xfs/xfs_aops.c | 6 ++----
2 files changed, 4 insertions(+), 8 deletions(-)
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 0094923e5ebf..37fa06ef5417 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -95,8 +95,7 @@ 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) {
@@ -108,8 +107,7 @@ static void ext4_finish_bio(struct bio *bio)
if (bio->bi_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) {
#ifdef CONFIG_EXT4_FS_ENCRYPTION
if (data_page)
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index d31cd1ebd8e9..5ea3f933a52a 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -112,8 +112,7 @@ xfs_finish_page_writeback(
ASSERT(bvec->bv_offset + bvec->bv_len <= PAGE_SIZE);
ASSERT((bvec->bv_len & (i_blocksize(inode) - 1)) == 0);
- local_irq_save(flags);
- bit_spin_lock(BH_Uptodate_Lock, &head->b_state);
+ flags = bh_uptodate_lock_irqsave(head);
do {
if (off >= bvec->bv_offset &&
off < bvec->bv_offset + bvec->bv_len) {
@@ -136,8 +135,7 @@ xfs_finish_page_writeback(
}
off += bh->b_size;
} 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 (!busy)
end_page_writeback(bvec->bv_page);
--
2.13.2
next prev parent reply other threads:[~2017-11-23 5:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-23 5:23 [PATCH RT 0/7] Linux 4.9.61-rt52-rc2 Steven Rostedt
2017-11-23 5:23 ` [PATCH RT 1/7] drivers/zram: fix zcomp_stream_get() smp_processor_id() use in preemptible code Steven Rostedt
2017-11-23 5:23 ` [PATCH RT 2/7] fs/dcache: disable preemption on i_dir_seqs write side Steven Rostedt
2017-11-23 5:23 ` [PATCH RT 3/7] tpm_tis: fix stall after iowrite*()s Steven Rostedt
2017-11-23 5:23 ` Steven Rostedt [this message]
2017-11-23 5:23 ` [PATCH RT 5/7] locking/rt-mutex: fix deadlock in device mapper / block-IO Steven Rostedt
2017-11-23 5:23 ` [PATCH RT 6/7] md/raid5: do not disable interrupts Steven Rostedt
2017-11-23 5:23 ` [PATCH RT 7/7] Linux 4.9.61-rt52-rc2 Steven Rostedt
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