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path: root/fs/xfs/libxfs/xfs_rtbitmap.c
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Diffstat (limited to 'fs/xfs/libxfs/xfs_rtbitmap.c')
-rw-r--r--fs/xfs/libxfs/xfs_rtbitmap.c56
1 files changed, 27 insertions, 29 deletions
diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c
index f42c74cb8be5..fa180ab66b73 100644
--- a/fs/xfs/libxfs/xfs_rtbitmap.c
+++ b/fs/xfs/libxfs/xfs_rtbitmap.c
@@ -56,9 +56,9 @@ xfs_rtbuf_get(
xfs_trans_t *tp, /* transaction pointer */
xfs_rtblock_t block, /* block number in bitmap or summary */
int issum, /* is summary not bitmap */
- xfs_buf_t **bpp) /* output: buffer for the block */
+ struct xfs_buf **bpp) /* output: buffer for the block */
{
- xfs_buf_t *bp; /* block buffer, result */
+ struct xfs_buf *bp; /* block buffer, result */
xfs_inode_t *ip; /* bitmap or summary inode */
xfs_bmbt_irec_t map;
int nmap = 1;
@@ -66,11 +66,11 @@ xfs_rtbuf_get(
ip = issum ? mp->m_rsumip : mp->m_rbmip;
- error = xfs_bmapi_read(ip, block, 1, &map, &nmap, XFS_DATA_FORK);
+ error = xfs_bmapi_read(ip, block, 1, &map, &nmap, 0);
if (error)
return error;
- if (XFS_IS_CORRUPT(mp, nmap == 0 || !xfs_bmap_is_real_extent(&map)))
+ if (XFS_IS_CORRUPT(mp, nmap == 0 || !xfs_bmap_is_written_extent(&map)))
return -EFSCORRUPTED;
ASSERT(map.br_startblock != NULLFSBLOCK);
@@ -101,7 +101,7 @@ xfs_rtfind_back(
xfs_rtword_t *b; /* current word in buffer */
int bit; /* bit number in the word */
xfs_rtblock_t block; /* bitmap block number */
- xfs_buf_t *bp; /* buf for the block */
+ struct xfs_buf *bp; /* buf for the block */
xfs_rtword_t *bufp; /* starting word in buffer */
int error; /* error value */
xfs_rtblock_t firstbit; /* first useful bit in the word */
@@ -276,7 +276,7 @@ xfs_rtfind_forw(
xfs_rtword_t *b; /* current word in buffer */
int bit; /* bit number in the word */
xfs_rtblock_t block; /* bitmap block number */
- xfs_buf_t *bp; /* buf for the block */
+ struct xfs_buf *bp; /* buf for the block */
xfs_rtword_t *bufp; /* starting word in buffer */
int error; /* error value */
xfs_rtblock_t i; /* current bit number rel. to start */
@@ -447,11 +447,11 @@ xfs_rtmodify_summary_int(
int log, /* log2 of extent size */
xfs_rtblock_t bbno, /* bitmap block number */
int delta, /* change to make to summary info */
- xfs_buf_t **rbpp, /* in/out: summary block buffer */
+ struct xfs_buf **rbpp, /* in/out: summary block buffer */
xfs_fsblock_t *rsb, /* in/out: summary block number */
xfs_suminfo_t *sum) /* out: summary info for this block */
{
- xfs_buf_t *bp; /* buffer for the summary block */
+ struct xfs_buf *bp; /* buffer for the summary block */
int error; /* error value */
xfs_fsblock_t sb; /* summary fsblock */
int so; /* index into the summary file */
@@ -517,7 +517,7 @@ xfs_rtmodify_summary(
int log, /* log2 of extent size */
xfs_rtblock_t bbno, /* bitmap block number */
int delta, /* change to make to summary info */
- xfs_buf_t **rbpp, /* in/out: summary block buffer */
+ struct xfs_buf **rbpp, /* in/out: summary block buffer */
xfs_fsblock_t *rsb) /* in/out: summary block number */
{
return xfs_rtmodify_summary_int(mp, tp, log, bbno,
@@ -539,7 +539,7 @@ xfs_rtmodify_range(
xfs_rtword_t *b; /* current word in buffer */
int bit; /* bit number in the word */
xfs_rtblock_t block; /* bitmap block number */
- xfs_buf_t *bp; /* buf for the block */
+ struct xfs_buf *bp; /* buf for the block */
xfs_rtword_t *bufp; /* starting word in buffer */
int error; /* error value */
xfs_rtword_t *first; /* first used word in the buffer */
@@ -690,7 +690,7 @@ xfs_rtfree_range(
xfs_trans_t *tp, /* transaction pointer */
xfs_rtblock_t start, /* starting block to free */
xfs_extlen_t len, /* length to free */
- xfs_buf_t **rbpp, /* in/out: summary block buffer */
+ struct xfs_buf **rbpp, /* in/out: summary block buffer */
xfs_fsblock_t *rsb) /* in/out: summary block number */
{
xfs_rtblock_t end; /* end of the freed extent */
@@ -773,7 +773,7 @@ xfs_rtcheck_range(
xfs_rtword_t *b; /* current word in buffer */
int bit; /* bit number in the word */
xfs_rtblock_t block; /* bitmap block number */
- xfs_buf_t *bp; /* buf for the block */
+ struct xfs_buf *bp; /* buf for the block */
xfs_rtword_t *bufp; /* starting word in buffer */
int error; /* error value */
xfs_rtblock_t i; /* current bit number rel. to start */
@@ -969,7 +969,7 @@ xfs_rtfree_extent(
int error; /* error value */
xfs_mount_t *mp; /* file system mount structure */
xfs_fsblock_t sb; /* summary file block number */
- xfs_buf_t *sumbp = NULL; /* summary file block buffer */
+ struct xfs_buf *sumbp = NULL; /* summary file block buffer */
mp = tp->t_mountp;
@@ -997,8 +997,8 @@ xfs_rtfree_extent(
*/
if (tp->t_frextents_delta + mp->m_sb.sb_frextents ==
mp->m_sb.sb_rextents) {
- if (!(mp->m_rbmip->i_d.di_flags & XFS_DIFLAG_NEWRTBM))
- mp->m_rbmip->i_d.di_flags |= XFS_DIFLAG_NEWRTBM;
+ if (!(mp->m_rbmip->i_diflags & XFS_DIFLAG_NEWRTBM))
+ mp->m_rbmip->i_diflags |= XFS_DIFLAG_NEWRTBM;
*(uint64_t *)&VFS_I(mp->m_rbmip)->i_atime = 0;
xfs_trans_log_inode(tp, mp->m_rbmip, XFS_ILOG_CORE);
}
@@ -1008,17 +1008,17 @@ xfs_rtfree_extent(
/* Find all the free records within a given range. */
int
xfs_rtalloc_query_range(
+ struct xfs_mount *mp,
struct xfs_trans *tp,
- struct xfs_rtalloc_rec *low_rec,
- struct xfs_rtalloc_rec *high_rec,
+ const struct xfs_rtalloc_rec *low_rec,
+ const struct xfs_rtalloc_rec *high_rec,
xfs_rtalloc_query_range_fn fn,
void *priv)
{
struct xfs_rtalloc_rec rec;
- struct xfs_mount *mp = tp->t_mountp;
xfs_rtblock_t rtstart;
xfs_rtblock_t rtend;
- xfs_rtblock_t rem;
+ xfs_rtblock_t high_key;
int is_free;
int error = 0;
@@ -1027,13 +1027,12 @@ xfs_rtalloc_query_range(
if (low_rec->ar_startext >= mp->m_sb.sb_rextents ||
low_rec->ar_startext == high_rec->ar_startext)
return 0;
- if (high_rec->ar_startext > mp->m_sb.sb_rextents)
- high_rec->ar_startext = mp->m_sb.sb_rextents;
+
+ high_key = min(high_rec->ar_startext, mp->m_sb.sb_rextents - 1);
/* Iterate the bitmap, looking for discrepancies. */
rtstart = low_rec->ar_startext;
- rem = high_rec->ar_startext - rtstart;
- while (rem) {
+ while (rtstart <= high_key) {
/* Is the first block free? */
error = xfs_rtcheck_range(mp, tp, rtstart, 1, 1, &rtend,
&is_free);
@@ -1041,8 +1040,7 @@ xfs_rtalloc_query_range(
break;
/* How long does the extent go for? */
- error = xfs_rtfind_forw(mp, tp, rtstart,
- high_rec->ar_startext - 1, &rtend);
+ error = xfs_rtfind_forw(mp, tp, rtstart, high_key, &rtend);
if (error)
break;
@@ -1050,12 +1048,11 @@ xfs_rtalloc_query_range(
rec.ar_startext = rtstart;
rec.ar_extcount = rtend - rtstart + 1;
- error = fn(tp, &rec, priv);
+ error = fn(mp, tp, &rec, priv);
if (error)
break;
}
- rem -= rtend - rtstart + 1;
rtstart = rtend + 1;
}
@@ -1065,6 +1062,7 @@ xfs_rtalloc_query_range(
/* Find all the free records. */
int
xfs_rtalloc_query_all(
+ struct xfs_mount *mp,
struct xfs_trans *tp,
xfs_rtalloc_query_range_fn fn,
void *priv)
@@ -1072,10 +1070,10 @@ xfs_rtalloc_query_all(
struct xfs_rtalloc_rec keys[2];
keys[0].ar_startext = 0;
- keys[1].ar_startext = tp->t_mountp->m_sb.sb_rextents - 1;
+ keys[1].ar_startext = mp->m_sb.sb_rextents - 1;
keys[0].ar_extcount = keys[1].ar_extcount = 0;
- return xfs_rtalloc_query_range(tp, &keys[0], &keys[1], fn, priv);
+ return xfs_rtalloc_query_range(mp, tp, &keys[0], &keys[1], fn, priv);
}
/* Is the given extent all free? */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.