Btrfs: fix fallocate regression

Seems that when btrfs_fallocate was converted to use the new ENOSPC stuff we
dropped passing the mode to the function that actually does the preallocation.
This breaks anybody who wants to use FALLOC_FL_KEEP_SIZE.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 2551b8018399..d999c538cdc2 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6893,7 +6893,7 @@ static long btrfs_fallocate(struct inode *inode, int mode,
                 if (em->block_start == EXTENT_MAP_HOLE ||
                     (cur_offset >= inode->i_size &&
                      !test_bit(EXTENT_FLAG_PREALLOC, &em->flags))) {
-                        ret = btrfs_prealloc_file_range(inode, 0, cur_offset,
+                        ret = btrfs_prealloc_file_range(inode, mode, cur_offset,
                                                         last_byte - cur_offset,
                                                         1 << inode->i_blkbits,
                                                         offset + len,