diff options
| author | Howard McLauchlan <hmclauchlan@fb.com> | 2018-03-08 10:48:48 -0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-03-31 01:26:52 +0200 |
| commit | 62b8e077317971b74d79c9cc501db2ae861d48b2 (patch) | |
| tree | 29473f3709f80ca745b5844a5edbe4116255f8b2 /fs/btrfs/super.c | |
| parent | 92e2f7e37004115db2ba98c6999a74ff5e41c83f (diff) | |
| download | linux-62b8e077317971b74d79c9cc501db2ae861d48b2.tar.gz linux-62b8e077317971b74d79c9cc501db2ae861d48b2.tar.bz2 linux-62b8e077317971b74d79c9cc501db2ae861d48b2.zip | |
btrfs: Add nossd_spread mount option
Btrfs has two mount options for SSD optimizations: ssd and ssd_spread.
Presently there is an option to disable all SSD optimizations, but there
isn't an option to disable just ssd_spread.
This patch adds a mount option nossd_spread that disables ssd_spread
only.
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Howard McLauchlan <hmclauchlan@fb.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/super.c')
| -rw-r--r-- | fs/btrfs/super.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index defaccde8d16..121b9d40ff8f 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -310,10 +310,10 @@ static void btrfs_put_super(struct super_block *sb) enum { Opt_degraded, Opt_subvol, Opt_subvolid, Opt_device, Opt_nodatasum, Opt_nodatacow, Opt_max_inline, Opt_alloc_start, Opt_nobarrier, Opt_ssd, - Opt_nossd, Opt_ssd_spread, Opt_thread_pool, Opt_noacl, Opt_compress, - Opt_compress_type, Opt_compress_force, Opt_compress_force_type, - Opt_notreelog, Opt_ratio, Opt_flushoncommit, Opt_discard, - Opt_space_cache, Opt_space_cache_version, Opt_clear_cache, + Opt_nossd, Opt_ssd_spread, Opt_nossd_spread, Opt_thread_pool, Opt_noacl, + Opt_compress, Opt_compress_type, Opt_compress_force, + Opt_compress_force_type, Opt_notreelog, Opt_ratio, Opt_flushoncommit, + Opt_discard, Opt_space_cache, Opt_space_cache_version, Opt_clear_cache, Opt_user_subvol_rm_allowed, Opt_enospc_debug, Opt_subvolrootid, Opt_defrag, Opt_inode_cache, Opt_no_space_cache, Opt_recovery, Opt_skip_balance, Opt_check_integrity, @@ -353,6 +353,7 @@ static const match_table_t tokens = { {Opt_ssd, "ssd"}, {Opt_ssd_spread, "ssd_spread"}, {Opt_nossd, "nossd"}, + {Opt_nossd_spread, "nossd_spread"}, {Opt_acl, "acl"}, {Opt_noacl, "noacl"}, {Opt_notreelog, "notreelog"}, @@ -579,6 +580,8 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char *options, btrfs_set_opt(info->mount_opt, NOSSD); btrfs_clear_and_info(info, SSD, "not using ssd optimizations"); + /* Fallthrough */ + case Opt_nossd_spread: btrfs_clear_and_info(info, SSD_SPREAD, "not using spread ssd allocation scheme"); break; |