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| author | Chris Mason | 2008-01-18 16:54:22 +0100 |
|---|---|---|
| committer | Chris Mason | 2008-09-25 17:03:59 +0200 |
| commit | e18e4809b10e6c9efb5fe10c1ddcb4ebb690d517 (patch) | |
| tree | c8419f7fde6690cd352252af89295511650e3707 /fs/btrfs/super.c | |
| parent | Btrfs: Use blk_congestion_wait on older kernels (diff) | |
| download | kernel-qcow2-linux-e18e4809b10e6c9efb5fe10c1ddcb4ebb690d517.tar.gz kernel-qcow2-linux-e18e4809b10e6c9efb5fe10c1ddcb4ebb690d517.tar.xz kernel-qcow2-linux-e18e4809b10e6c9efb5fe10c1ddcb4ebb690d517.zip | |
Btrfs: Add mount -o ssd, which includes optimizations for seek free storage
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/super.c')
| -rw-r--r-- | fs/btrfs/super.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index e506de3168bc..b6982f0133cf 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -64,7 +64,7 @@ static void btrfs_put_super (struct super_block * sb) enum { Opt_subvol, Opt_nodatasum, Opt_nodatacow, Opt_max_extent, - Opt_alloc_start, Opt_nobarrier, Opt_err, + Opt_alloc_start, Opt_nobarrier, Opt_ssd, Opt_err, }; static match_table_t tokens = { @@ -74,6 +74,7 @@ static match_table_t tokens = { {Opt_nobarrier, "nobarrier"}, {Opt_max_extent, "max_extent=%s"}, {Opt_alloc_start, "alloc_start=%s"}, + {Opt_ssd, "ssd"}, {Opt_err, NULL} }; @@ -149,6 +150,12 @@ static int parse_options (char * options, btrfs_set_opt(info->mount_opt, NODATASUM); } break; + case Opt_ssd: + if (info) { + printk("btrfs: use ssd allocation scheme\n"); + btrfs_set_opt(info->mount_opt, SSD); + } + break; case Opt_nobarrier: if (info) { printk("btrfs: turning off barriers\n"); |