diff options
| -rw-r--r-- | fs/btrfs/ctree.h | 1 | ||||
| -rw-r--r-- | fs/btrfs/extent-tree.c | 2 | ||||
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 5 | ||||
| -rw-r--r-- | fs/btrfs/free-space-cache.h | 1 | ||||
| -rw-r--r-- | fs/btrfs/super.c | 19 |
5 files changed, 22 insertions, 6 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index ce3ab4e..b9d8788 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1100,6 +1100,7 @@ struct btrfs_root { #define BTRFS_MOUNT_COMPRESS (1 << 5) #define BTRFS_MOUNT_NOTREELOG (1 << 6) #define BTRFS_MOUNT_FLUSHONCOMMIT (1 << 7) +#define BTRFS_MOUNT_SSD_SPREAD (1 << 8) #define btrfs_clear_opt(o, opt) ((o) &= ~BTRFS_MOUNT_##opt) #define btrfs_set_opt(o, opt) ((o) |= BTRFS_MOUNT_##opt) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index a42419c..3355d7e 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3607,7 +3607,7 @@ refill_cluster: last_ptr_loop = 0; /* allocate a cluster in this block group */ - ret = btrfs_find_space_cluster(trans, + ret = btrfs_find_space_cluster(trans, root, block_group, last_ptr, offset, num_bytes, empty_cluster + empty_size); diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index ac23476..4538e48 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -579,6 +579,7 @@ out: * it returns -enospc */ int btrfs_find_space_cluster(struct btrfs_trans_handle *trans, + struct btrfs_root *root, struct btrfs_block_group_cache *block_group, struct btrfs_free_cluster *cluster, u64 offset, u64 bytes, u64 empty_size) @@ -595,7 +596,9 @@ int btrfs_find_space_cluster(struct btrfs_trans_handle *trans, int ret; /* for metadata, allow allocates with more holes */ - if (block_group->flags & BTRFS_BLOCK_GROUP_METADATA) { + if (btrfs_test_opt(root, SSD_SPREAD)) { + min_bytes = bytes + empty_size; + } else if (block_group->flags & BTRFS_BLOCK_GROUP_METADATA) { /* * we want to do larger allocations when we are * flushing out the delayed refs, it helps prevent diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h index ab0bdc0..266fb87 100644 --- a/fs/btrfs/free-space-cache.h +++ b/fs/btrfs/free-space-cache.h @@ -31,6 +31,7 @@ void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group, u64 bytes); u64 btrfs_block_group_free_space(struct btrfs_block_group_cache *block_group); int btrfs_find_space_cluster(struct btrfs_trans_handle *trans, + struct btrfs_root *root, struct btrfs_block_group_cache *block_group, struct btrfs_free_cluster *cluster, u64 offset, u64 bytes, u64 empty_size); diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 22855a1..7f5b288 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -66,8 +66,8 @@ static void btrfs_put_super(struct super_block *sb) enum { Opt_degraded, Opt_subvol, Opt_device, Opt_nodatasum, Opt_nodatacow, Opt_max_extent, Opt_max_inline, Opt_alloc_start, Opt_nobarrier, - Opt_ssd, Opt_nossd, Opt_thread_pool, Opt_noacl, Opt_compress, - Opt_notreelog, Opt_ratio, Opt_flushoncommit, Opt_err, + Opt_ssd, Opt_nossd, Opt_ssd_spread, Opt_thread_pool, Opt_noacl, + Opt_compress, Opt_notreelog, Opt_ratio, Opt_flushoncommit, Opt_err, }; static match_table_t tokens = { @@ -83,6 +83,7 @@ static match_table_t tokens = { {Opt_thread_pool, "thread_pool=%d"}, {Opt_compress, "compress"}, {Opt_ssd, "ssd"}, + {Opt_ssd_spread, "ssd_spread"}, {Opt_nossd, "nossd"}, {Opt_noacl, "noacl"}, {Opt_notreelog, "notreelog"}, @@ -174,9 +175,17 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) printk(KERN_INFO "btrfs: use ssd allocation scheme\n"); btrfs_set_opt(info->mount_opt, SSD); break; + case Opt_ssd_spread: + printk(KERN_INFO "btrfs: use spread ssd " + "allocation scheme\n"); + btrfs_set_opt(info->mount_opt, SSD); + btrfs_set_opt(info->mount_opt, SSD_SPREAD); + break; case Opt_nossd: - printk(KERN_INFO "btrfs: not using ssd allocation scheme\n"); + printk(KERN_INFO "btrfs: not using ssd allocation " + "scheme\n"); btrfs_clear_opt(info->mount_opt, SSD); + btrfs_clear_opt(info->mount_opt, SSD_SPREAD); break; case Opt_nobarrier: printk(KERN_INFO "btrfs: turning off barriers\n"); @@ -429,7 +438,9 @@ static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs) seq_printf(seq, ",thread_pool=%d", info->thread_pool_size); if (btrfs_test_opt(root, COMPRESS)) seq_puts(seq, ",compress"); - if (btrfs_test_opt(root, SSD)) + if (btrfs_test_opt(root, SSD_SPREAD)) + seq_puts(seq, ",ssd_spread"); + else if (btrfs_test_opt(root, SSD)) seq_puts(seq, ",ssd"); if (btrfs_test_opt(root, NOTREELOG)) seq_puts(seq, ",notreelog"); |