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authorDavid S. Miller <davem@davemloft.net>2015-03-03 21:16:48 -0500
committerDavid S. Miller <davem@davemloft.net>2015-03-03 21:16:48 -0500
commit71a83a6db6138b9d41d8a0b6b91cb59f6dc4742c (patch)
treef74b6e4e48257ec6ce40b95645ecb8533b9cc1f8 /fs/btrfs/dev-replace.c
parentb97526f3ff95f92b107f0fb52cbb8627e395429b (diff)
parenta6c5170d1edea97c538c81e377e56c7b5c5b7e63 (diff)
downloadtalos-op-linux-71a83a6db6138b9d41d8a0b6b91cb59f6dc4742c.tar.gz
talos-op-linux-71a83a6db6138b9d41d8a0b6b91cb59f6dc4742c.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/ethernet/rocker/rocker.c The rocker commit was two overlapping changes, one to rename the ->vport member to ->pport, and another making the bitmask expression use '1ULL' instead of plain '1'. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/btrfs/dev-replace.c')
-rw-r--r--fs/btrfs/dev-replace.c25
1 files changed, 8 insertions, 17 deletions
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index ca6a3a3b6b6c..5ec03d999c37 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -440,18 +440,9 @@ leave:
*/
static void btrfs_rm_dev_replace_blocked(struct btrfs_fs_info *fs_info)
{
- s64 writers;
- DEFINE_WAIT(wait);
-
set_bit(BTRFS_FS_STATE_DEV_REPLACING, &fs_info->fs_state);
- do {
- prepare_to_wait(&fs_info->replace_wait, &wait,
- TASK_UNINTERRUPTIBLE);
- writers = percpu_counter_sum(&fs_info->bio_counter);
- if (writers)
- schedule();
- finish_wait(&fs_info->replace_wait, &wait);
- } while (writers);
+ wait_event(fs_info->replace_wait, !percpu_counter_sum(
+ &fs_info->bio_counter));
}
/*
@@ -932,15 +923,15 @@ void btrfs_bio_counter_sub(struct btrfs_fs_info *fs_info, s64 amount)
void btrfs_bio_counter_inc_blocked(struct btrfs_fs_info *fs_info)
{
- DEFINE_WAIT(wait);
-again:
- percpu_counter_inc(&fs_info->bio_counter);
- if (test_bit(BTRFS_FS_STATE_DEV_REPLACING, &fs_info->fs_state)) {
+ while (1) {
+ percpu_counter_inc(&fs_info->bio_counter);
+ if (likely(!test_bit(BTRFS_FS_STATE_DEV_REPLACING,
+ &fs_info->fs_state)))
+ break;
+
btrfs_bio_counter_dec(fs_info);
wait_event(fs_info->replace_wait,
!test_bit(BTRFS_FS_STATE_DEV_REPLACING,
&fs_info->fs_state));
- goto again;
}
-
}
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