diff options
| -rw-r--r-- | fs/btrfs/scrub.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index 7aec821bd424..755273b77a3f 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -2671,11 +2671,17 @@ static int scrub_extent(struct scrub_ctx *sctx, struct map_lookup *map, u8 csum[BTRFS_CSUM_SIZE]; u32 blocksize; + /* + * Block size determines how many scrub_block will be allocated. Here + * we use BTRFS_STRIPE_LEN (64KiB) as default limit, so we won't + * allocate too many scrub_block, while still won't cause too large + * bios for large extents. + */ if (flags & BTRFS_EXTENT_FLAG_DATA) { if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) blocksize = map->stripe_len; else - blocksize = sctx->fs_info->sectorsize; + blocksize = BTRFS_STRIPE_LEN; spin_lock(&sctx->stat_lock); sctx->stat.data_extents_scrubbed++; sctx->stat.data_bytes_scrubbed += len; |