diff options
| author | Josef Bacik <jbacik@fusionio.com> | 2013-03-15 15:32:16 -0400 |
|---|---|---|
| committer | David Sterba <dsterba@suse.cz> | 2013-04-23 18:56:20 +0200 |
| commit | 7b20da8d525d11dabc98bdd49efef7b8be5576ab (patch) | |
| tree | 8aed340d9c354b2387fffd9fe4e8b3d5f081ae35 /btrfstune.c | |
| parent | e5c6852c0c4ce72205dd0bab40924d2ace75cb6f (diff) | |
Btrfs-progs: add skinny metadata support to progs V3
This fixes up the progs to properly deal with skinny metadata. This adds the -x
option to mkfs and btrfstune for enabling the skinny metadata option. This also
makes changes to fsck so it can properly deal with the skinny metadata entries.
Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'btrfstune.c')
| -rw-r--r-- | btrfstune.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/btrfstune.c b/btrfstune.c index 2f3d0876..993f2d21 100644 --- a/btrfstune.c +++ b/btrfstune.c @@ -81,11 +81,28 @@ int enable_extrefs_flag(struct btrfs_root *root) return 0; } +int enable_skinny_metadata(struct btrfs_root *root) +{ + struct btrfs_trans_handle *trans; + struct btrfs_super_block *disk_super; + u64 super_flags; + + disk_super = &root->fs_info->super_copy; + super_flags = btrfs_super_incompat_flags(disk_super); + super_flags |= BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA; + trans = btrfs_start_transaction(root, 1); + btrfs_set_super_incompat_flags(disk_super, super_flags); + btrfs_commit_transaction(trans, root); + + return 0; +} + static void print_usage(void) { fprintf(stderr, "usage: btrfstune [options] device\n"); fprintf(stderr, "\t-S value\tenable/disable seeding\n"); fprintf(stderr, "\t-r \t\tenable extended inode refs\n"); + fprintf(stderr, "\t-x enable skinny metadata extent refs\n"); } int main(int argc, char *argv[]) @@ -95,10 +112,11 @@ int main(int argc, char *argv[]) int extrefs_flag = 0; int seeding_flag = 0; int seeding_value = 0; + int skinny_flag = 0; int ret; while(1) { - int c = getopt(argc, argv, "S:r"); + int c = getopt(argc, argv, "S:rx"); if (c < 0) break; switch(c) { @@ -109,6 +127,9 @@ int main(int argc, char *argv[]) case 'r': extrefs_flag = 1; break; + case 'x': + skinny_flag = 1; + break; default: print_usage(); return 1; @@ -145,6 +166,11 @@ int main(int argc, char *argv[]) success++; } + if (skinny_flag) { + enable_skinny_metadata(root); + success++; + } + if (success > 0) { ret = 0; } else { |