From: "Darrick J. Wong" <djwong@xxxxxxxxxx>
Source kernel commit: a684c538bc14410565e8939393089670fa1e19dd
In most of the filesystem, we use xfs_extlen_t to store the length of a
file (or AG) space mapping in units of fs blocks. Unfortunately, the
realtime allocator also uses it to store the length of a rt space
mapping in units of rt extents. This is confusing, since one rt extent
can consist of many fs blocks.
Separate the two by introducing a new type (xfs_rtxlen_t) to store the
length of a space mapping (in units of realtime extents) that would be
found in a file.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Carlos Maiolino <cem@xxxxxxxxxx>
---
libxfs/xfs_rtbitmap.c | 12 ++++++------
libxfs/xfs_rtbitmap.h | 11 +++++------
libxfs/xfs_types.h | 1 +
3 files changed, 12 insertions(+), 12 deletions(-)
diff --git a/libxfs/xfs_rtbitmap.c b/libxfs/xfs_rtbitmap.c
index bd0925c9a..976b1aca6 100644
--- a/libxfs/xfs_rtbitmap.c
+++ b/libxfs/xfs_rtbitmap.c
@@ -532,7 +532,7 @@ xfs_rtmodify_range(
xfs_mount_t *mp, /* file system mount point */
xfs_trans_t *tp, /* transaction pointer */
xfs_rtblock_t start, /* starting block to modify */
- xfs_extlen_t len, /* length of extent to modify */
+ xfs_rtxlen_t len, /* length of extent to modify */
int val) /* 1 for free, 0 for allocated */
{
xfs_rtword_t *b; /* current word in buffer */
@@ -688,7 +688,7 @@ xfs_rtfree_range(
xfs_mount_t *mp, /* file system mount point */
xfs_trans_t *tp, /* transaction pointer */
xfs_rtblock_t start, /* starting block to free */
- xfs_extlen_t len, /* length to free */
+ xfs_rtxlen_t len, /* length to free */
struct xfs_buf **rbpp, /* in/out: summary block buffer */
xfs_fsblock_t *rsb) /* in/out: summary block number */
{
@@ -764,7 +764,7 @@ xfs_rtcheck_range(
xfs_mount_t *mp, /* file system mount point */
xfs_trans_t *tp, /* transaction pointer */
xfs_rtblock_t start, /* starting block number of extent */
- xfs_extlen_t len, /* length of extent */
+ xfs_rtxlen_t len, /* length of extent */
int val, /* 1 for free, 0 for allocated */
xfs_rtblock_t *new, /* out: first block not matching */
int *stat) /* out: 1 for matches, 0 for not */
@@ -940,7 +940,7 @@ xfs_rtcheck_alloc_range(
xfs_mount_t *mp, /* file system mount point */
xfs_trans_t *tp, /* transaction pointer */
xfs_rtblock_t bno, /* starting block number of extent */
- xfs_extlen_t len) /* length of extent */
+ xfs_rtxlen_t len) /* length of extent */
{
xfs_rtblock_t new; /* dummy for xfs_rtcheck_range */
int stat;
@@ -963,7 +963,7 @@ int /* error */
xfs_rtfree_extent(
xfs_trans_t *tp, /* transaction pointer */
xfs_rtblock_t bno, /* starting block number to free */
- xfs_extlen_t len) /* length of extent freed */
+ xfs_rtxlen_t len) /* length of extent freed */
{
int error; /* error value */
xfs_mount_t *mp; /* file system mount structure */
@@ -1114,7 +1114,7 @@ xfs_rtalloc_extent_is_free(
struct xfs_mount *mp,
struct xfs_trans *tp,
xfs_rtblock_t start,
- xfs_extlen_t len,
+ xfs_rtxlen_t len,
bool *is_free)
{
xfs_rtblock_t end;
diff --git a/libxfs/xfs_rtbitmap.h b/libxfs/xfs_rtbitmap.h
index 546dea34b..d44496101 100644
--- a/libxfs/xfs_rtbitmap.h
+++ b/libxfs/xfs_rtbitmap.h
@@ -26,7 +26,7 @@ typedef int (*xfs_rtalloc_query_range_fn)(
int xfs_rtbuf_get(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_rtblock_t block, int issum, struct xfs_buf **bpp);
int xfs_rtcheck_range(struct xfs_mount *mp, struct xfs_trans *tp,
- xfs_rtblock_t start, xfs_extlen_t len, int val,
+ xfs_rtblock_t start, xfs_rtxlen_t len, int val,
xfs_rtblock_t *new, int *stat);
int xfs_rtfind_back(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_rtblock_t start, xfs_rtblock_t limit,
@@ -35,7 +35,7 @@ int xfs_rtfind_forw(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_rtblock_t start, xfs_rtblock_t limit,
xfs_rtblock_t *rtblock);
int xfs_rtmodify_range(struct xfs_mount *mp, struct xfs_trans *tp,
- xfs_rtblock_t start, xfs_extlen_t len, int val);
+ xfs_rtblock_t start, xfs_rtxlen_t len, int val);
int xfs_rtmodify_summary_int(struct xfs_mount *mp, struct xfs_trans *tp,
int log, xfs_rtblock_t bbno, int delta,
struct xfs_buf **rbpp, xfs_fsblock_t *rsb,
@@ -44,7 +44,7 @@ int xfs_rtmodify_summary(struct xfs_mount *mp, struct xfs_trans *tp, int log,
xfs_rtblock_t bbno, int delta, struct xfs_buf **rbpp,
xfs_fsblock_t *rsb);
int xfs_rtfree_range(struct xfs_mount *mp, struct xfs_trans *tp,
- xfs_rtblock_t start, xfs_extlen_t len,
+ xfs_rtblock_t start, xfs_rtxlen_t len,
struct xfs_buf **rbpp, xfs_fsblock_t *rsb);
int xfs_rtalloc_query_range(struct xfs_mount *mp, struct xfs_trans *tp,
const struct xfs_rtalloc_rec *low_rec,
@@ -53,9 +53,8 @@ int xfs_rtalloc_query_range(struct xfs_mount *mp, struct xfs_trans *tp,
int xfs_rtalloc_query_all(struct xfs_mount *mp, struct xfs_trans *tp,
xfs_rtalloc_query_range_fn fn,
void *priv);
-bool xfs_verify_rtbno(struct xfs_mount *mp, xfs_rtblock_t rtbno);
int xfs_rtalloc_extent_is_free(struct xfs_mount *mp, struct xfs_trans *tp,
- xfs_rtblock_t start, xfs_extlen_t len,
+ xfs_rtblock_t start, xfs_rtxlen_t len,
bool *is_free);
/*
* Free an extent in the realtime subvolume. Length is expressed in
@@ -65,7 +64,7 @@ int /* error */
xfs_rtfree_extent(
struct xfs_trans *tp, /* transaction pointer */
xfs_rtblock_t bno, /* starting block number to free */
- xfs_extlen_t len); /* length of extent freed */
+ xfs_rtxlen_t len); /* length of extent freed */
/* Same as above, but in units of rt blocks. */
int xfs_rtfree_blocks(struct xfs_trans *tp, xfs_fsblock_t rtbno,
diff --git a/libxfs/xfs_types.h b/libxfs/xfs_types.h
index 851220021..713cb7031 100644
--- a/libxfs/xfs_types.h
+++ b/libxfs/xfs_types.h
@@ -11,6 +11,7 @@ typedef uint32_t prid_t; /* project ID */
typedef uint32_t xfs_agblock_t; /* blockno in alloc. group */
typedef uint32_t xfs_agino_t; /* inode # within allocation grp */
typedef uint32_t xfs_extlen_t; /* extent length in blocks */
+typedef uint32_t xfs_rtxlen_t; /* file extent length in rtextents */
typedef uint32_t xfs_agnumber_t; /* allocation group number */
typedef uint64_t xfs_extnum_t; /* # of extents in a file */
typedef uint32_t xfs_aextnum_t; /* # extents in an attribute fork */
--
2.43.0
