From e18e4809b10e6c9efb5fe10c1ddcb4ebb690d517 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Fri, 18 Jan 2008 10:54:22 -0500 Subject: Btrfs: Add mount -o ssd, which includes optimizations for seek free storage Signed-off-by: Chris Mason --- fs/btrfs/super.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'fs/btrfs/super.c') diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index e506de3168b..b6982f0133c 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"); -- cgit v1.2.3-18-g5258