diff options
author | Chris Mason <chris.mason@oracle.com> | 2009-06-09 16:42:22 -0400 |
---|---|---|
committer | Chris Mason <chris.mason@oracle.com> | 2009-06-10 11:29:50 -0400 |
commit | 3b30c22f64a6bb297719c60e494af1d26563f584 (patch) | |
tree | 2730226cb21de6c61f6d1fb265c64523e0073354 | |
parent | d644d8a1e30b88a93bcfb63cada2ae628462ddba (diff) |
Btrfs: Add mount -o nossd
This allows you to turn off the ssd mode via remount.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
-rw-r--r-- | fs/btrfs/super.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index e9ef8c3307fe..22855a18eb48 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c | |||
@@ -66,8 +66,8 @@ static void btrfs_put_super(struct super_block *sb) | |||
66 | enum { | 66 | enum { |
67 | Opt_degraded, Opt_subvol, Opt_device, Opt_nodatasum, Opt_nodatacow, | 67 | Opt_degraded, Opt_subvol, Opt_device, Opt_nodatasum, Opt_nodatacow, |
68 | Opt_max_extent, Opt_max_inline, Opt_alloc_start, Opt_nobarrier, | 68 | Opt_max_extent, Opt_max_inline, Opt_alloc_start, Opt_nobarrier, |
69 | Opt_ssd, Opt_thread_pool, Opt_noacl, Opt_compress, Opt_notreelog, | 69 | Opt_ssd, Opt_nossd, Opt_thread_pool, Opt_noacl, Opt_compress, |
70 | Opt_ratio, Opt_flushoncommit, Opt_err, | 70 | Opt_notreelog, Opt_ratio, Opt_flushoncommit, Opt_err, |
71 | }; | 71 | }; |
72 | 72 | ||
73 | static match_table_t tokens = { | 73 | static match_table_t tokens = { |
@@ -83,6 +83,7 @@ static match_table_t tokens = { | |||
83 | {Opt_thread_pool, "thread_pool=%d"}, | 83 | {Opt_thread_pool, "thread_pool=%d"}, |
84 | {Opt_compress, "compress"}, | 84 | {Opt_compress, "compress"}, |
85 | {Opt_ssd, "ssd"}, | 85 | {Opt_ssd, "ssd"}, |
86 | {Opt_nossd, "nossd"}, | ||
86 | {Opt_noacl, "noacl"}, | 87 | {Opt_noacl, "noacl"}, |
87 | {Opt_notreelog, "notreelog"}, | 88 | {Opt_notreelog, "notreelog"}, |
88 | {Opt_flushoncommit, "flushoncommit"}, | 89 | {Opt_flushoncommit, "flushoncommit"}, |
@@ -173,6 +174,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) | |||
173 | printk(KERN_INFO "btrfs: use ssd allocation scheme\n"); | 174 | printk(KERN_INFO "btrfs: use ssd allocation scheme\n"); |
174 | btrfs_set_opt(info->mount_opt, SSD); | 175 | btrfs_set_opt(info->mount_opt, SSD); |
175 | break; | 176 | break; |
177 | case Opt_nossd: | ||
178 | printk(KERN_INFO "btrfs: not using ssd allocation scheme\n"); | ||
179 | btrfs_clear_opt(info->mount_opt, SSD); | ||
180 | break; | ||
176 | case Opt_nobarrier: | 181 | case Opt_nobarrier: |
177 | printk(KERN_INFO "btrfs: turning off barriers\n"); | 182 | printk(KERN_INFO "btrfs: turning off barriers\n"); |
178 | btrfs_set_opt(info->mount_opt, NOBARRIER); | 183 | btrfs_set_opt(info->mount_opt, NOBARRIER); |