github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-01 11:03:43 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

btrfs: output human readable space info flag

Browse Source 
For btrfs_space_info, its flags has only 4 possible values:

- BTRFS_BLOCK_GROUP_SYSTEM
- BTRFS_BLOCK_GROUP_METADATA | BTRFS_BLOCK_GROUP_DATA
- BTRFS_BLOCK_GROUP_METADATA
- BTRFS_BLOCK_GROUP_DATA

Make the output more human readable, now it looks like:

  BTRFS info (device dm-1: state A): space_info METADATA has 251494400 free, is not full

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2022-08-25 15:09:09 +08:00 committed by David Sterba
parent a05d3c9153
commit 25a860c409
1 changed files with 20 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
fs/btrfs/space-info.c
View File

@ -476,18 +476,35 @@ do { \
spin_unlock(&__rsv->lock); \
} while (0)
static const char *space_info_flag_to_str(const struct btrfs_space_info *space_info)
{
switch (space_info->flags) {
case BTRFS_BLOCK_GROUP_SYSTEM:
return "SYSTEM";
case BTRFS_BLOCK_GROUP_METADATA | BTRFS_BLOCK_GROUP_DATA:
return "DATA+METADATA";
case BTRFS_BLOCK_GROUP_DATA:
return "DATA";
case BTRFS_BLOCK_GROUP_METADATA:
return "METADATA";
default:
return "UNKNOWN";
}
}
static void __btrfs_dump_space_info(struct btrfs_fs_info *fs_info,
struct btrfs_space_info *info)
{
const char *flag_str = space_info_flag_to_str(info);
lockdep_assert_held(&info->lock);
/* The free space could be negative in case of overcommit */
btrfs_info(fs_info, "space_info %llu has %lld free, is %sfull",
info->flags,
btrfs_info(fs_info, "space_info %s has %lld free, is %sfull",
flag_str,
(s64)(info->total_bytes - btrfs_space_info_used(info, true)),
info->full ? "" : "not ");
btrfs_info(fs_info,
"space_info total=%llu, used=%llu, pinned=%llu, reserved=%llu, may_use=%llu, readonly=%llu zone_unusable=%llu",
"space_info total=%llu, used=%llu, pinned=%llu, reserved=%llu, may_use=%llu, readonly=%llu zone_unusable=%llu",
info->total_bytes, info->bytes_used, info->bytes_pinned,
info->bytes_reserved, info->bytes_may_use,
info->bytes_readonly, info->bytes_zone_unusable);