jim owens
2010-Mar-22 03:22 UTC
[PATCH V3 05/18] Btrfs: btrfs_discard_extent must use WRITE with btrfs_map_block.
WRITE is needed on btrfs_map_block() to fetch all raid stripes, READ only returns one device and we want to discard all copies. Signed-off-by: jim owens <owens6336@gmail.com> --- fs/btrfs/extent-tree.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index f01e41a..53ad905 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -1602,7 +1602,7 @@ static int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr, return 0; /* Tell the block device(s) that the sectors can be discarded */ - ret = btrfs_map_block(&root->fs_info->mapping_tree, READ, + ret = btrfs_map_block(&root->fs_info->mapping_tree, WRITE, bytenr, &map_length, &multi, 0); if (!ret) { struct btrfs_bio_stripe *stripe = multi->stripes; -- 1.6.3.3 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html