libxfs: create a helper to compute leftovers of realtime extents

Port the inode item precommunt function to use a helper to compute the
misalignment between a file extent (xfs_extlen_t) and a realtime extent.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bill O'Donnell <bodonnel@redhat.com>

diff --git a/libxfs/logitem.c b/libxfs/logitem.c
index 48928f322113bd60877828fea7b471fdfbc0dfd0..3ce2d7574a3731cc276b55d686a06862749af0be 100644 (file)
--- a/libxfs/logitem.c
+++ b/libxfs/logitem.c
@@ -15,6 +15,7 @@
 #include "xfs_inode_fork.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
+#include "xfs_rtbitmap.h"
 
 struct kmem_cache      *xfs_buf_item_cache;
 struct kmem_cache      *xfs_ili_cache;         /* inode log item cache */
@@ -213,7 +214,7 @@ xfs_inode_item_precommit(
         */
        if ((ip->i_diflags & XFS_DIFLAG_RTINHERIT) &&
            (ip->i_diflags & XFS_DIFLAG_EXTSZINHERIT) &&
-           (ip->i_extsize % ip->i_mount->m_sb.sb_rextsize) > 0) {
+           xfs_extlen_to_rtxmod(ip->i_mount, ip->i_extsize) > 0) {
                ip->i_diflags &= ~(XFS_DIFLAG_EXTSIZE |
                                   XFS_DIFLAG_EXTSZINHERIT);
                ip->i_extsize = 0;