Establish an ioctl for userspace to query the original and current
per-AG reservation counts. This will be used by xfs_scrub to
check that the vfs counters are at least somewhat sane.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
libxfs/xfs_fs.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/libxfs/xfs_fs.h b/libxfs/xfs_fs.h
index fd2dd80..2c37d57 100644
--- a/libxfs/xfs_fs.h
+++ b/libxfs/xfs_fs.h
@@ -580,6 +580,15 @@ struct xfs_scrub_metadata {
#define XFS_SCRUB_FLAGS_ALL 0x0 /* no flags yet */
/*
+ * AG reserved block counters
+ */
+struct xfs_fsop_ag_resblks {
+ __u64 resblks; /* blocks reserved now */
+ __u64 resblks_orig; /* blocks reserved at mount time */
+ __u64 reserved[2];
+};
+
+/*
* ioctl limits
*/
#ifdef XATTR_LIST_MAX
@@ -652,6 +661,7 @@ struct xfs_scrub_metadata {
#define XFS_IOC_ATTRMULTI_BY_HANDLE _IOW ('X', 123, struct xfs_fsop_attrmulti_handlereq)
#define XFS_IOC_FSGEOMETRY _IOR ('X', 124, struct xfs_fsop_geom)
#define XFS_IOC_GOINGDOWN _IOR ('X', 125, __uint32_t)
+#define XFS_IOC_GET_AG_RESBLKS _IOR ('X', 126, struct xfs_fsop_ag_resblks)
/* XFS_IOC_GETFSUUID ---------- deprecated 140 */
/* reflink ioctls; these MUST match the btrfs ioctl definitions */
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