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authorJosef Bacik <josef@redhat.com>2010-03-19 18:07:23 +0000
committerChris Mason <chris.mason@oracle.com>2010-03-30 21:19:09 -0400
commit287a0ab91d25ca982f895a76402e5893b47ed7a6 (patch)
treefcbe35daef2b4cbdc2bfc0c6026e7c45faef0245 /fs/btrfs/super.c
parent1b1d1f6625e517a08640ddb4b8f8a0e025243fe3 (diff)
Btrfs: kill max_extent mount option
As Yan pointed out, theres not much reason for all this complicated math to account for file extents being split up into max_extent chunks, since they are likely to all end up in the same leaf anyway. Since there isn't much reason to use max_extent, just remove the option altogether so we have one less thing we need to test. Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/super.c')
-rw-r--r--fs/btrfs/super.c23
1 files changed, 3 insertions, 20 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 9ac612e6ca6..d11b12fc086 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -64,10 +64,9 @@ static void btrfs_put_super(struct super_block *sb)
enum {
Opt_degraded, Opt_subvol, Opt_subvolid, Opt_device, Opt_nodatasum,
- Opt_nodatacow, Opt_max_extent, Opt_max_inline, Opt_alloc_start,
- Opt_nobarrier, Opt_ssd, Opt_nossd, Opt_ssd_spread, Opt_thread_pool,
- Opt_noacl, Opt_compress, Opt_compress_force, Opt_notreelog, Opt_ratio,
- Opt_flushoncommit,
+ 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_force, Opt_notreelog, Opt_ratio, Opt_flushoncommit,
Opt_discard, Opt_err,
};
@@ -79,7 +78,6 @@ static match_table_t tokens = {
{Opt_nodatasum, "nodatasum"},
{Opt_nodatacow, "nodatacow"},
{Opt_nobarrier, "nobarrier"},
- {Opt_max_extent, "max_extent=%s"},
{Opt_max_inline, "max_inline=%s"},
{Opt_alloc_start, "alloc_start=%s"},
{Opt_thread_pool, "thread_pool=%d"},
@@ -188,18 +186,6 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
info->thread_pool_size);
}
break;
- case Opt_max_extent:
- num = match_strdup(&args[0]);
- if (num) {
- info->max_extent = memparse(num, NULL);
- kfree(num);
-
- info->max_extent = max_t(u64,
- info->max_extent, root->sectorsize);
- printk(KERN_INFO "btrfs: max_extent at %llu\n",
- (unsigned long long)info->max_extent);
- }
- break;
case Opt_max_inline:
num = match_strdup(&args[0]);
if (num) {
@@ -529,9 +515,6 @@ static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
seq_puts(seq, ",nodatacow");
if (btrfs_test_opt(root, NOBARRIER))
seq_puts(seq, ",nobarrier");
- if (info->max_extent != (u64)-1)
- seq_printf(seq, ",max_extent=%llu",
- (unsigned long long)info->max_extent);
if (info->max_inline != 8192 * 1024)
seq_printf(seq, ",max_inline=%llu",
(unsigned long long)info->max_inline);