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authorDarrick J. Wong <djwong@kernel.org>2023-10-16 19:34:39 +0300
committerDarrick J. Wong <djwong@kernel.org>2023-10-18 02:24:22 +0300
commit68db60bf01c131c09bbe35adf43bd957a4c124bc (patch)
tree05898334658a0cc5e8d1a50dfc32d02f7e971668 /fs/xfs/libxfs
parentfa5a387230861116c2434c20d29fc4b3fd077d24 (diff)
downloadlinux-68db60bf01c131c09bbe35adf43bd957a4c124bc.tar.xz
xfs: create a helper to compute leftovers of realtime extents
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@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/libxfs')
-rw-r--r--fs/xfs/libxfs/xfs_bmap.c4
-rw-r--r--fs/xfs/libxfs/xfs_rtbitmap.h9
2 files changed, 11 insertions, 2 deletions
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 4e7de4f2fd7a..19203699b992 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -2989,7 +2989,7 @@ 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.
@@ -3016,7 +3016,7 @@ 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/fs/xfs/libxfs/xfs_rtbitmap.h b/fs/xfs/libxfs/xfs_rtbitmap.h
index 099ea8902aaa..b6a4c46bddc0 100644
--- a/fs/xfs/libxfs/xfs_rtbitmap.h
+++ b/fs/xfs/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.
*/