diff --git a/[refs] b/[refs] index 325470d7ad5b..59e32b42d760 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 94e60d5a5c4b98a32b1077dec88df09ada712376 +refs/heads/master: ea67176ae8c024f64d85ec33873e5eadf1af7247 diff --git a/trunk/fs/btrfs/volumes.c b/trunk/fs/btrfs/volumes.c index c60071a448a5..e86c9e4fe51e 100644 --- a/trunk/fs/btrfs/volumes.c +++ b/trunk/fs/btrfs/volumes.c @@ -2207,6 +2207,20 @@ static int chunk_drange_filter(struct extent_buffer *leaf, return 1; } +/* [vstart, vend) */ +static int chunk_vrange_filter(struct extent_buffer *leaf, + struct btrfs_chunk *chunk, + u64 chunk_offset, + struct btrfs_balance_args *bargs) +{ + if (chunk_offset < bargs->vend && + chunk_offset + btrfs_chunk_length(leaf, chunk) > bargs->vstart) + /* at least part of the chunk is inside this vrange */ + return 0; + + return 1; +} + static int should_balance_chunk(struct btrfs_root *root, struct extent_buffer *leaf, struct btrfs_chunk *chunk, u64 chunk_offset) @@ -2252,6 +2266,12 @@ static int should_balance_chunk(struct btrfs_root *root, return 0; } + /* vrange filter */ + if ((bargs->flags & BTRFS_BALANCE_ARGS_VRANGE) && + chunk_vrange_filter(leaf, chunk, chunk_offset, bargs)) { + return 0; + } + return 1; } diff --git a/trunk/fs/btrfs/volumes.h b/trunk/fs/btrfs/volumes.h index 844b08e388f2..eac26c359312 100644 --- a/trunk/fs/btrfs/volumes.h +++ b/trunk/fs/btrfs/volumes.h @@ -203,6 +203,7 @@ struct map_lookup { #define BTRFS_BALANCE_ARGS_USAGE (1ULL << 1) #define BTRFS_BALANCE_ARGS_DEVID (1ULL << 2) #define BTRFS_BALANCE_ARGS_DRANGE (1ULL << 3) +#define BTRFS_BALANCE_ARGS_VRANGE (1ULL << 4) struct btrfs_balance_args; struct btrfs_balance_control {