Add dataset_kstats_update.. to mmap read/write path on Linux

This allows reads/writes caused by accesses to mmap files to be accounted correctly in the per-dataset kstats. Signed-off-by: Matthias Blankertz <[email protected]> Issue openzfs#12994
drowfx · Jan 30, 2022 · 5c0b9cf · 5c0b9cf
1 parent 73e972a
commit 5c0b9cf
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/module/os/linux/zfs/zfs_vnops_os.c b/module/os/linux/zfs/zfs_vnops_os.c
@@ -3610,6 +3610,8 @@ zfs_putpage(struct inode *ip, struct page *pp, struct writeback_control *wbc)
 		zil_commit(zfsvfs->z_log, zp->z_id);
 	}
 
+	dataset_kstats_update_write_kstats(&zfsvfs->z_kstat, pglen);
+
 	ZFS_EXIT(zfsvfs);
 	return (err);
 }
@@ -3805,6 +3807,8 @@ zfs_getpage(struct inode *ip, struct page *pl[], int nr_pages)
 
 	err = zfs_fillpage(ip, pl, nr_pages);
 
+	dataset_kstats_update_read_kstats(&zfsvfs->z_kstat, nr_pages*PAGESIZE);
+
 	ZFS_EXIT(zfsvfs);
 	return (err);
 }