diff options
| -rw-r--r-- | fs/btrfs/file.c | 5 | ||||
| -rw-r--r-- | fs/btrfs/inode.c | 9 |
2 files changed, 8 insertions, 6 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 54556cae4497..79437c5eeb1e 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -888,14 +888,9 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb, BTRFS_I(inode)->sequence++; if (unlikely(file->f_flags & O_DIRECT)) { - ret = btrfs_delalloc_reserve_space(inode, count); - if (ret) - goto out; - num_written = generic_file_direct_write(iocb, iov, &nr_segs, pos, ppos, count, ocount); - /* * the generic O_DIRECT will update in-memory i_size after the * DIOs are done. But our endio handlers that update the on diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 00aefbdcc2df..ca9d5501d340 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -5602,9 +5602,16 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb, ssize_t ret; int writing = rw & WRITE; int write_bits = 0; + size_t count = iov_length(iov, nr_segs); lockstart = offset; - lockend = offset + iov_length(iov, nr_segs) - 1; + lockend = offset + count - 1; + + if (writing) { + ret = btrfs_delalloc_reserve_space(inode, count); + if (ret) + goto out; + } while (1) { lock_extent_bits(&BTRFS_I(inode)->io_tree, lockstart, lockend, |