Jetpack/kernel/kernel-4.9/rt-patches/0330-fs-convert-two-more-BH...

70 lines
2.4 KiB
Diff

From a17605d6b2b8a18728fe6455f3caa1c8d9318947 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Mon, 6 Nov 2017 18:45:30 +0100
Subject: [PATCH 330/352] fs: convert two more BH_Uptodate_Lock related
bitspinlocks
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 0718a86..4ca6cc2 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -94,8 +94,7 @@ 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) {
@@ -107,8 +106,7 @@ 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 f3acecf..c30dbde 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);
--
2.7.4