Messages in this thread Patch in this message | | | Date | Wed, 17 Jan 2018 10:14:08 -0500 | From | Steven Rostedt <> | Subject | [PATCH RT 04/13] fs: convert two more BH_Uptodate_Lock related bitspinlocks |
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3.18.91-rt98-rc1 stable review patch. If anyone has any objections, please let me know.
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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
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