Merge tag 'sound-fix-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...

[firefly-linux-kernel-4.4.55.git] / fs / btrfs / extent_io.c

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index c32d226bfeccbb28f25f2f417fa9e57b14411136..02d05817cbdfe8330add4bbefd424ea1058cb09d 100644 (file)
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1277,7 +1277,12 @@ int set_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
 int clear_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
                      unsigned bits, gfp_t mask)
 {
-       return clear_extent_bit(tree, start, end, bits, 0, 0, NULL, mask);
+       int wake = 0;
+
+       if (bits & EXTENT_LOCKED)
+               wake = 1;
+
+       return clear_extent_bit(tree, start, end, bits, wake, 0, NULL, mask);
 }
 
 int set_extent_delalloc(struct extent_io_tree *tree, u64 start, u64 end,
@@ -2767,8 +2772,6 @@ static int __must_check submit_one_bio(int rw, struct bio *bio,
        else
                btrfsic_submit_bio(rw, bio);
 
-       if (bio_flagged(bio, BIO_EOPNOTSUPP))
-               ret = -EOPNOTSUPP;
        bio_put(bio);
        return ret;
 }
@@ -4492,6 +4495,8 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
                }
                if (test_bit(EXTENT_FLAG_COMPRESSED, &em->flags))
                        flags |= FIEMAP_EXTENT_ENCODED;
+               if (test_bit(EXTENT_FLAG_PREALLOC, &em->flags))
+                       flags |= FIEMAP_EXTENT_UNWRITTEN;
 
                free_extent_map(em);
                em = NULL;