From: Darrick J. Wong <djwong@kernel.org>
Date: Mon, 12 Feb 2024 14:20:20 +0000 (+0100)
Subject: xfs: create a helper to convert extlen to rtextlen
X-Git-Tag: v6.7.0~55
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a01e6467b84585c437de831a139562937396e3e9;p=thirdparty%2Fxfsprogs-dev.git

xfs: create a helper to convert extlen to rtextlen

Source kernel commit: 2c2b981b737a519907429f62148bbd9e40e01132

Create a helper to compute the realtime extent (xfs_rtxlen_t) from an
extent length (xfs_extlen_t) value.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
---

diff --git a/libxfs/xfs_rtbitmap.h b/libxfs/xfs_rtbitmap.h
index b6a4c46b..e2a36fc1 100644
--- a/libxfs/xfs_rtbitmap.h
+++ b/libxfs/xfs_rtbitmap.h
@@ -31,6 +31,14 @@ xfs_extlen_to_rtxmod(
 	return len % mp->m_sb.sb_rextsize;
 }
 
+static inline xfs_rtxlen_t
+xfs_extlen_to_rtxlen(
+	struct xfs_mount	*mp,
+	xfs_extlen_t		len)
+{
+	return len / mp->m_sb.sb_rextsize;
+}
+
 /*
  * Functions for walking free space rtextents in the realtime bitmap.
  */
diff --git a/libxfs/xfs_trans_resv.c b/libxfs/xfs_trans_resv.c
index 04c44480..53c190b7 100644
--- a/libxfs/xfs_trans_resv.c
+++ b/libxfs/xfs_trans_resv.c
@@ -18,6 +18,7 @@
 #include "xfs_trans.h"
 #include "xfs_trans_space.h"
 #include "xfs_quota_defs.h"
+#include "xfs_rtbitmap.h"
 
 #define _ALLOC	true
 #define _FREE	false
@@ -219,7 +220,7 @@ xfs_rtalloc_block_count(
 	unsigned int		blksz = XFS_FSB_TO_B(mp, 1);
 	unsigned int		rtbmp_bytes;
 
-	rtbmp_bytes = (XFS_MAX_BMBT_EXTLEN / mp->m_sb.sb_rextsize) / NBBY;
+	rtbmp_bytes = xfs_extlen_to_rtxlen(mp, XFS_MAX_BMBT_EXTLEN) / NBBY;
 	return (howmany(rtbmp_bytes, blksz) + 1) * num_ops;
 }