diff options
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index fa5dd209ca58..05cb7b1ab172 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -7403,7 +7403,8 @@ static struct extent_map *create_io_em(struct btrfs_inode *inode, u64 start, static int btrfs_get_blocks_direct_write(struct extent_map **map, struct inode *inode, struct btrfs_dio_data *dio_data, - u64 start, u64 len) + u64 start, u64 len, + unsigned int iomap_flags) { struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct extent_map *em = *map; @@ -7473,6 +7474,9 @@ static int btrfs_get_blocks_direct_write(struct extent_map **map, free_extent_map(em); *map = NULL; + if (iomap_flags & IOMAP_NOWAIT) + return -EAGAIN; + /* We have to COW, so need to reserve metadata and data space. */ ret = btrfs_delalloc_reserve_space(BTRFS_I(inode), &dio_data->data_reserved, @@ -7649,7 +7653,7 @@ static int btrfs_dio_iomap_begin(struct inode *inode, loff_t start, if (write) { ret = btrfs_get_blocks_direct_write(&em, inode, dio_data, - start, len); + start, len, flags); if (ret < 0) goto unlock_err; unlock_extents = true; |