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    Subject[PATCH 13/30] GFS2: Add get_xstate quota function
    Date
    This allows querying of the quota state via the XFS quota
    API.

    Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
    ---
    fs/gfs2/quota.c | 23 +++++++++++++++++++++++
    1 files changed, 23 insertions(+), 0 deletions(-)

    diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
    index 6aaa6c5..e7114be 100644
    --- a/fs/gfs2/quota.c
    +++ b/fs/gfs2/quota.c
    @@ -47,6 +47,7 @@
    #include <linux/gfs2_ondisk.h>
    #include <linux/kthread.h>
    #include <linux/freezer.h>
    +#include <linux/dqblk_xfs.h>

    #include "gfs2.h"
    #include "incore.h"
    @@ -1375,7 +1376,29 @@ int gfs2_quotad(void *data)
    return 0;
    }

    +static int gfs2_quota_get_xstate(struct super_block *sb,
    + struct fs_quota_stat *fqs)
    +{
    + struct gfs2_sbd *sdp = sb->s_fs_info;
    +
    + memset(fqs, 0, sizeof(struct fs_quota_stat));
    + fqs->qs_version = FS_QSTAT_VERSION;
    + if (sdp->sd_args.ar_quota == GFS2_QUOTA_ON)
    + fqs->qs_flags = (XFS_QUOTA_UDQ_ENFD | XFS_QUOTA_GDQ_ENFD);
    + else if (sdp->sd_args.ar_quota == GFS2_QUOTA_ACCOUNT)
    + fqs->qs_flags = (XFS_QUOTA_UDQ_ACCT | XFS_QUOTA_GDQ_ACCT);
    + if (sdp->sd_quota_inode) {
    + fqs->qs_uquota.qfs_ino = GFS2_I(sdp->sd_quota_inode)->i_no_addr;
    + fqs->qs_uquota.qfs_nblks = sdp->sd_quota_inode->i_blocks;
    + }
    + fqs->qs_uquota.qfs_nextents = 1; /* unsupported */
    + fqs->qs_gquota = fqs->qs_uquota; /* its the same inode in both cases */
    + fqs->qs_incoredqs = atomic_read(&qd_lru_count);
    + return 0;
    +}
    +
    const struct quotactl_ops gfs2_quotactl_ops = {
    .quota_sync = gfs2_quota_sync,
    + .get_xstate = gfs2_quota_get_xstate,
    };

    --
    1.6.2.5


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