From: Kotresh HR <khiremat@xxxxxxxxxx>
Problem:
The statfs reports incorrect free/available space
for quota less then CEPH_BLOCK size (4M).
Solution:
For quotas less than CEPH_BLOCK size, it is
decided to go with binary use/free of full block.
For quota size less than CEPH_BLOCK size, report
the total=used=CEPH_BLOCK,free=0 when quota is
full and total=free=CEPH_BLOCK, used=0 otherwise.
Signed-off-by: Kotresh HR <khiremat@xxxxxxxxxx>
---
fs/ceph/quota.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/fs/ceph/quota.c b/fs/ceph/quota.c
index 620c691af40e..d49ba82d08bf 100644
--- a/fs/ceph/quota.c
+++ b/fs/ceph/quota.c
@@ -505,6 +505,22 @@ bool ceph_quota_update_statfs(struct ceph_fs_client *fsc, struct kstatfs *buf)
buf->f_bfree = free;
buf->f_bavail = free;
is_updated = true;
+ } else if (ci->i_max_bytes) {
+ /* For quota size less than CEPH_BLOCK size, report
+ * the total=used=CEPH_BLOCK,free=0 when quota is full and
+ * total=free=CEPH_BLOCK, used=0 otherwise */
+ total = ci->i_max_bytes;
+ used = ci->i_rbytes;
+
+ buf->f_blocks = 1;
+ if (total > used) {
+ buf->f_bfree = 1;
+ buf->f_bavail = 1;
+ } else {
+ buf->f_bfree = 0;
+ buf->f_bavail = 0;
+ }
+ is_updated = true;
}
iput(in);
}
--
2.31.1
