diff options
Diffstat (limited to 'fs/btrfs/extent_io.c')
| -rw-r--r-- | fs/btrfs/extent_io.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 7bc23e26a530..23bdd05b5cec 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4260,6 +4260,13 @@ void set_extent_buffer_uptodate(struct extent_buffer *eb) } } +static void clear_extent_buffer_reading(struct extent_buffer *eb) +{ + clear_bit(EXTENT_BUFFER_READING, &eb->bflags); + smp_mb__after_atomic(); + wake_up_bit(&eb->bflags, EXTENT_BUFFER_READING); +} + static void end_bbio_meta_read(struct btrfs_bio *bbio) { struct extent_buffer *eb = bbio->private; @@ -4294,9 +4301,7 @@ static void end_bbio_meta_read(struct btrfs_bio *bbio) bio_offset += len; } - clear_bit(EXTENT_BUFFER_READING, &eb->bflags); - smp_mb__after_atomic(); - wake_up_bit(&eb->bflags, EXTENT_BUFFER_READING); + clear_extent_buffer_reading(eb); free_extent_buffer(eb); bio_put(&bbio->bio); @@ -4330,9 +4335,7 @@ int read_extent_buffer_pages(struct extent_buffer *eb, int wait, int mirror_num, * will now be set, and we shouldn't read it in again. */ if (unlikely(test_bit(EXTENT_BUFFER_UPTODATE, &eb->bflags))) { - clear_bit(EXTENT_BUFFER_READING, &eb->bflags); - smp_mb__after_atomic(); - wake_up_bit(&eb->bflags, EXTENT_BUFFER_READING); + clear_extent_buffer_reading(eb); return 0; } |