RepoMirrors
/
btrfs-progs
mirror of https://github.com/kdave/btrfs-progs
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

btrfs-progs: mkfs: introduce quota runtime feature 

Add support for enabling quotas at mkfs time. The qgroup accounting will
be consistent, ie. works with --rootdir.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2018-05-08 14:31:54 +08:00 committed by David Sterba
parent 5ac6e02665
commit 6ee4ab24da
4 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
Documentation/mkfs.btrfs.asciidoc
View File

@ -244,6 +244,12 @@ option or by an ioctl. Some of them can be enabled early, at mkfs time. This
applies to features that need to be enabled once and then the status is applies to features that need to be enabled once and then the status is
permanent, this does not replace mount options. permanent, this does not replace mount options.
*quota*::
(kernel support since 3.4)
+
Enable quota support (qgroups). The qgroup accounting will be consistent,
can be used together with '--rootdir'. See also `btrfs-quota`(8).
BLOCK GROUPS, CHUNKS, RAID BLOCK GROUPS, CHUNKS, RAID
-------------------------- --------------------------

3
common/fsfeatures.c
View File

@ -104,6 +104,9 @@ static const struct btrfs_feature mkfs_features[] = {
}; };
static const struct btrfs_feature runtime_features[] = { static const struct btrfs_feature runtime_features[] = {
{ "quota", BTRFS_RUNTIME_FEATURE_QUOTA, NULL,
VERSION_TO_STRING2(3, 4), NULL, 0, NULL, 0,
"quota support (qgroups)" },
/* Keep this one last */ /* Keep this one last */
{ "list-all", BTRFS_FEATURE_LIST_ALL, NULL } { "list-all", BTRFS_FEATURE_LIST_ALL, NULL }
}; };

2
common/fsfeatures.h
View File

@ -39,6 +39,8 @@
#define BTRFS_FEATURE_LIST_ALL (1ULL << 63) #define BTRFS_FEATURE_LIST_ALL (1ULL << 63)
#define BTRFS_RUNTIME_FEATURE_QUOTA (1ULL << 0)
void btrfs_list_all_fs_features(u64 mask_disallowed); void btrfs_list_all_fs_features(u64 mask_disallowed);
void btrfs_list_all_runtime_features(u64 mask_disallowed); void btrfs_list_all_runtime_features(u64 mask_disallowed);
char *btrfs_parse_fs_features(char *namelist, u64 *flags); char *btrfs_parse_fs_features(char *namelist, u64 *flags);

7
mkfs/main.c
View File

@ -1484,6 +1484,13 @@ raid_groups:
} }
} }
if (runtime_features & BTRFS_RUNTIME_FEATURE_QUOTA) {
ret = setup_quota_root(fs_info);
if (ret < 0) {
error("failed to initialize quota: %d (%m)", ret);
goto out;
}
}
if (verbose) { if (verbose) {
char features_buf[64]; char features_buf[64];