From: "Darrick J. Wong" <djwong@xxxxxxxxxx>
Source kernel commit: 68db60bf01c131c09bbe35adf43bd957a4c124bc
Create a helper to compute the misalignment between a file extent
(xfs_extlen_t) and a realtime extent.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Carlos Maiolino <cem@xxxxxxxxxx>
---
libxfs/xfs_bmap.c | 4 ++--
libxfs/xfs_rtbitmap.h | 9 +++++++++
2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/libxfs/xfs_bmap.c b/libxfs/xfs_bmap.c
index 69549a94a..6e863c8a4 100644
--- a/libxfs/xfs_bmap.c
+++ b/libxfs/xfs_bmap.c
@@ -2983,7 +2983,7 @@ xfs_bmap_extsize_align(
* If realtime, and the result isn't a multiple of the realtime
* extent size we need to remove blocks until it is.
*/
- if (rt && (temp = (align_alen % mp->m_sb.sb_rextsize))) {
+ if (rt && (temp = xfs_extlen_to_rtxmod(mp, align_alen))) {
/*
* We're not covering the original request, or
* we won't be able to once we fix the length.
@@ -3010,7 +3010,7 @@ xfs_bmap_extsize_align(
else {
align_alen -= orig_off - align_off;
align_off = orig_off;
- align_alen -= align_alen % mp->m_sb.sb_rextsize;
+ align_alen -= xfs_extlen_to_rtxmod(mp, align_alen);
}
/*
* Result doesn't cover the request, fail it.
diff --git a/libxfs/xfs_rtbitmap.h b/libxfs/xfs_rtbitmap.h
index 099ea8902..b6a4c46bd 100644
--- a/libxfs/xfs_rtbitmap.h
+++ b/libxfs/xfs_rtbitmap.h
@@ -22,6 +22,15 @@ xfs_rtxlen_to_extlen(
return rtxlen * mp->m_sb.sb_rextsize;
}
+/* Compute the misalignment between an extent length and a realtime extent .*/
+static inline unsigned int
+xfs_extlen_to_rtxmod(
+ 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.
*/
--
2.43.0
