LU-9555 quota: df should return projid-specific values

[fs/lustre-release.git] / lustre / llite / llite_lib.c

diff --git a/lustre/llite/llite_lib.c b/lustre/llite/llite_lib.c
index 5e6bfd3..3744aa2 100644 (file)
--- a/lustre/llite/llite_lib.c
+++ b/lustre/llite/llite_lib.c
@@ -2205,6 +2205,52 @@ out:
        RETURN(rc);
 }
 
+static int ll_statfs_project(struct inode *inode, struct kstatfs *sfs)
+{
+       struct if_quotactl qctl = {
+               .qc_cmd = LUSTRE_Q_GETQUOTA,
+               .qc_type = PRJQUOTA,
+               .qc_valid = QC_GENERAL,
+       };
+       u64 limit, curblock;
+       int ret;
+
+       qctl.qc_id = ll_i2info(inode)->lli_projid;
+       ret = quotactl_ioctl(ll_i2sbi(inode), &qctl);
+       if (ret) {
+               /* ignore errors if project ID does not have
+                * a quota limit or feature unsupported.
+                */
+               if (ret == -ESRCH || ret == -EOPNOTSUPP)
+                       ret = 0;
+               return ret;
+       }
+
+       limit = ((qctl.qc_dqblk.dqb_bsoftlimit ?
+                qctl.qc_dqblk.dqb_bsoftlimit :
+                qctl.qc_dqblk.dqb_bhardlimit) * 1024) / sfs->f_bsize;
+       if (limit && sfs->f_blocks > limit) {
+               curblock = (qctl.qc_dqblk.dqb_curspace +
+                               sfs->f_bsize - 1) / sfs->f_bsize;
+               sfs->f_blocks = limit;
+               sfs->f_bfree = sfs->f_bavail =
+                       (sfs->f_blocks > curblock) ?
+                       (sfs->f_blocks - curblock) : 0;
+       }
+
+       limit = qctl.qc_dqblk.dqb_isoftlimit ?
+               qctl.qc_dqblk.dqb_isoftlimit :
+               qctl.qc_dqblk.dqb_ihardlimit;
+       if (limit && sfs->f_files > limit) {
+               sfs->f_files = limit;
+               sfs->f_ffree = (sfs->f_files >
+                       qctl.qc_dqblk.dqb_curinodes) ?
+                       (sfs->f_files - qctl.qc_dqblk.dqb_curinodes) : 0;
+       }
+
+       return 0;
+}
+
 int ll_statfs(struct dentry *de, struct kstatfs *sfs)
 {
        struct super_block *sb = de->d_sb;
@@ -2241,6 +2287,8 @@ int ll_statfs(struct dentry *de, struct kstatfs *sfs)
        sfs->f_bavail = osfs.os_bavail;
        sfs->f_fsid.val[0] = (__u32)fsid;
        sfs->f_fsid.val[1] = (__u32)(fsid >> 32);
+       if (ll_i2info(de->d_inode)->lli_projid)
+               return ll_statfs_project(de->d_inode, sfs);
 
        ll_stats_ops_tally(ll_s2sbi(sb), LPROC_LL_STATFS,
                           ktime_us_delta(ktime_get(), kstart));