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path: root/fs/xfs/xfs_bmap.c
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Diffstat (limited to 'fs/xfs/xfs_bmap.c')
-rw-r--r--fs/xfs/xfs_bmap.c327
1 files changed, 42 insertions, 285 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 99587ded043f..23f14e595c18 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -30,13 +30,10 @@
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
#include "xfs_dir2_sf.h"
-#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_btree.h"
-#include "xfs_dmapi.h"
#include "xfs_mount.h"
-#include "xfs_ialloc.h"
#include "xfs_itable.h"
#include "xfs_dir2_data.h"
#include "xfs_dir2_leaf.h"
@@ -104,7 +101,6 @@ xfs_bmap_add_extent(
xfs_fsblock_t *first, /* pointer to firstblock variable */
xfs_bmap_free_t *flist, /* list of extents to be freed */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int whichfork, /* data or attr fork */
int rsvd); /* OK to allocate reserved blocks */
@@ -122,7 +118,6 @@ xfs_bmap_add_extent_delay_real(
xfs_fsblock_t *first, /* pointer to firstblock variable */
xfs_bmap_free_t *flist, /* list of extents to be freed */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int rsvd); /* OK to allocate reserved blocks */
/*
@@ -135,7 +130,6 @@ xfs_bmap_add_extent_hole_delay(
xfs_extnum_t idx, /* extent number to update/insert */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp,/* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int rsvd); /* OK to allocate reserved blocks */
/*
@@ -149,7 +143,6 @@ xfs_bmap_add_extent_hole_real(
xfs_btree_cur_t *cur, /* if null, not a btree */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int whichfork); /* data or attr fork */
/*
@@ -162,8 +155,7 @@ xfs_bmap_add_extent_unwritten_real(
xfs_extnum_t idx, /* extent number to update/insert */
xfs_btree_cur_t **curp, /* if *curp is null, not a btree */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
- int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta); /* Change made to incore extents */
+ int *logflagsp); /* inode logging flags */
/*
* xfs_bmap_alloc is called by xfs_bmapi to allocate an extent for a file.
@@ -200,7 +192,6 @@ xfs_bmap_del_extent(
xfs_btree_cur_t *cur, /* if null, not a btree */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp,/* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int whichfork, /* data or attr fork */
int rsvd); /* OK to allocate reserved blocks */
@@ -489,7 +480,6 @@ xfs_bmap_add_extent(
xfs_fsblock_t *first, /* pointer to firstblock variable */
xfs_bmap_free_t *flist, /* list of extents to be freed */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int whichfork, /* data or attr fork */
int rsvd) /* OK to use reserved data blocks */
{
@@ -524,15 +514,6 @@ xfs_bmap_add_extent(
logflags = XFS_ILOG_CORE | xfs_ilog_fext(whichfork);
} else
logflags = 0;
- /* DELTA: single new extent */
- if (delta) {
- if (delta->xed_startoff > new->br_startoff)
- delta->xed_startoff = new->br_startoff;
- if (delta->xed_blockcount <
- new->br_startoff + new->br_blockcount)
- delta->xed_blockcount = new->br_startoff +
- new->br_blockcount;
- }
}
/*
* Any kind of new delayed allocation goes here.
@@ -542,7 +523,7 @@ xfs_bmap_add_extent(
ASSERT((cur->bc_private.b.flags &
XFS_BTCUR_BPRV_WASDEL) == 0);
if ((error = xfs_bmap_add_extent_hole_delay(ip, idx, new,
- &logflags, delta, rsvd)))
+ &logflags, rsvd)))
goto done;
}
/*
@@ -553,7 +534,7 @@ xfs_bmap_add_extent(
ASSERT((cur->bc_private.b.flags &
XFS_BTCUR_BPRV_WASDEL) == 0);
if ((error = xfs_bmap_add_extent_hole_real(ip, idx, cur, new,
- &logflags, delta, whichfork)))
+ &logflags, whichfork)))
goto done;
} else {
xfs_bmbt_irec_t prev; /* old extent at offset idx */
@@ -578,17 +559,17 @@ xfs_bmap_add_extent(
XFS_BTCUR_BPRV_WASDEL);
if ((error = xfs_bmap_add_extent_delay_real(ip,
idx, &cur, new, &da_new, first, flist,
- &logflags, delta, rsvd)))
+ &logflags, rsvd)))
goto done;
} else if (new->br_state == XFS_EXT_NORM) {
ASSERT(new->br_state == XFS_EXT_NORM);
if ((error = xfs_bmap_add_extent_unwritten_real(
- ip, idx, &cur, new, &logflags, delta)))
+ ip, idx, &cur, new, &logflags)))
goto done;
} else {
ASSERT(new->br_state == XFS_EXT_UNWRITTEN);
if ((error = xfs_bmap_add_extent_unwritten_real(
- ip, idx, &cur, new, &logflags, delta)))
+ ip, idx, &cur, new, &logflags)))
goto done;
}
ASSERT(*curp == cur || *curp == NULL);
@@ -601,7 +582,7 @@ xfs_bmap_add_extent(
ASSERT((cur->bc_private.b.flags &
XFS_BTCUR_BPRV_WASDEL) == 0);
if ((error = xfs_bmap_add_extent_hole_real(ip, idx, cur,
- new, &logflags, delta, whichfork)))
+ new, &logflags, whichfork)))
goto done;
}
}
@@ -666,7 +647,6 @@ xfs_bmap_add_extent_delay_real(
xfs_fsblock_t *first, /* pointer to firstblock variable */
xfs_bmap_free_t *flist, /* list of extents to be freed */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int rsvd) /* OK to use reserved data block allocation */
{
xfs_btree_cur_t *cur; /* btree cursor */
@@ -797,11 +777,6 @@ xfs_bmap_add_extent_delay_real(
goto done;
}
*dnew = 0;
- /* DELTA: Three in-core extents are replaced by one. */
- temp = LEFT.br_startoff;
- temp2 = LEFT.br_blockcount +
- PREV.br_blockcount +
- RIGHT.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_LEFT_CONTIG:
@@ -832,10 +807,6 @@ xfs_bmap_add_extent_delay_real(
goto done;
}
*dnew = 0;
- /* DELTA: Two in-core extents are replaced by one. */
- temp = LEFT.br_startoff;
- temp2 = LEFT.br_blockcount +
- PREV.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -867,10 +838,6 @@ xfs_bmap_add_extent_delay_real(
goto done;
}
*dnew = 0;
- /* DELTA: Two in-core extents are replaced by one. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount +
- RIGHT.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING:
@@ -900,9 +867,6 @@ xfs_bmap_add_extent_delay_real(
XFS_WANT_CORRUPTED_GOTO(i == 1, done);
}
*dnew = 0;
- /* DELTA: The in-core extent described by new changed type. */
- temp = new->br_startoff;
- temp2 = new->br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG:
@@ -942,10 +906,6 @@ xfs_bmap_add_extent_delay_real(
xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
*dnew = temp;
- /* DELTA: The boundary between two in-core extents moved. */
- temp = LEFT.br_startoff;
- temp2 = LEFT.br_blockcount +
- PREV.br_blockcount;
break;
case BMAP_LEFT_FILLING:
@@ -990,9 +950,6 @@ xfs_bmap_add_extent_delay_real(
xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
trace_xfs_bmap_post_update(ip, idx + 1, state, _THIS_IP_);
*dnew = temp;
- /* DELTA: One in-core extent is split in two. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount;
break;
case BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1031,10 +988,6 @@ xfs_bmap_add_extent_delay_real(
xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
*dnew = temp;
- /* DELTA: The boundary between two in-core extents moved. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount +
- RIGHT.br_blockcount;
break;
case BMAP_RIGHT_FILLING:
@@ -1078,9 +1031,6 @@ xfs_bmap_add_extent_delay_real(
xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
*dnew = temp;
- /* DELTA: One in-core extent is split in two. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount;
break;
case 0:
@@ -1161,9 +1111,6 @@ xfs_bmap_add_extent_delay_real(
nullstartblock((int)temp2));
trace_xfs_bmap_post_update(ip, idx + 2, state, _THIS_IP_);
*dnew = temp + temp2;
- /* DELTA: One in-core extent is split in three. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
@@ -1179,13 +1126,6 @@ xfs_bmap_add_extent_delay_real(
ASSERT(0);
}
*curp = cur;
- if (delta) {
- temp2 += temp;
- if (delta->xed_startoff > temp)
- delta->xed_startoff = temp;
- if (delta->xed_blockcount < temp2)
- delta->xed_blockcount = temp2;
- }
done:
*logflagsp = rval;
return error;
@@ -1204,8 +1144,7 @@ xfs_bmap_add_extent_unwritten_real(
xfs_extnum_t idx, /* extent number to update/insert */
xfs_btree_cur_t **curp, /* if *curp is null, not a btree */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
- int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta) /* Change made to incore extents */
+ int *logflagsp) /* inode logging flags */
{
xfs_btree_cur_t *cur; /* btree cursor */
xfs_bmbt_rec_host_t *ep; /* extent entry for idx */
@@ -1219,8 +1158,6 @@ xfs_bmap_add_extent_unwritten_real(
/* left is 0, right is 1, prev is 2 */
int rval=0; /* return value (logging flags) */
int state = 0;/* state bits, accessed thru macros */
- xfs_filblks_t temp=0;
- xfs_filblks_t temp2=0;
#define LEFT r[0]
#define RIGHT r[1]
@@ -1341,11 +1278,6 @@ xfs_bmap_add_extent_unwritten_real(
RIGHT.br_blockcount, LEFT.br_state)))
goto done;
}
- /* DELTA: Three in-core extents are replaced by one. */
- temp = LEFT.br_startoff;
- temp2 = LEFT.br_blockcount +
- PREV.br_blockcount +
- RIGHT.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_LEFT_CONTIG:
@@ -1382,10 +1314,6 @@ xfs_bmap_add_extent_unwritten_real(
LEFT.br_state)))
goto done;
}
- /* DELTA: Two in-core extents are replaced by one. */
- temp = LEFT.br_startoff;
- temp2 = LEFT.br_blockcount +
- PREV.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1422,10 +1350,6 @@ xfs_bmap_add_extent_unwritten_real(
newext)))
goto done;
}
- /* DELTA: Two in-core extents are replaced by one. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount +
- RIGHT.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING:
@@ -1453,9 +1377,6 @@ xfs_bmap_add_extent_unwritten_real(
newext)))
goto done;
}
- /* DELTA: The in-core extent described by new changed type. */
- temp = new->br_startoff;
- temp2 = new->br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG:
@@ -1501,10 +1422,6 @@ xfs_bmap_add_extent_unwritten_real(
LEFT.br_state))
goto done;
}
- /* DELTA: The boundary between two in-core extents moved. */
- temp = LEFT.br_startoff;
- temp2 = LEFT.br_blockcount +
- PREV.br_blockcount;
break;
case BMAP_LEFT_FILLING:
@@ -1544,9 +1461,6 @@ xfs_bmap_add_extent_unwritten_real(
goto done;
XFS_WANT_CORRUPTED_GOTO(i == 1, done);
}
- /* DELTA: One in-core extent is split in two. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount;
break;
case BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1587,10 +1501,6 @@ xfs_bmap_add_extent_unwritten_real(
newext)))
goto done;
}
- /* DELTA: The boundary between two in-core extents moved. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount +
- RIGHT.br_blockcount;
break;
case BMAP_RIGHT_FILLING:
@@ -1630,9 +1540,6 @@ xfs_bmap_add_extent_unwritten_real(
goto done;
XFS_WANT_CORRUPTED_GOTO(i == 1, done);
}
- /* DELTA: One in-core extent is split in two. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount;
break;
case 0:
@@ -1692,9 +1599,6 @@ xfs_bmap_add_extent_unwritten_real(
goto done;
XFS_WANT_CORRUPTED_GOTO(i == 1, done);
}
- /* DELTA: One in-core extent is split in three. */
- temp = PREV.br_startoff;
- temp2 = PREV.br_blockcount;
break;
case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
@@ -1710,13 +1614,6 @@ xfs_bmap_add_extent_unwritten_real(
ASSERT(0);
}
*curp = cur;
- if (delta) {
- temp2 += temp;
- if (delta->xed_startoff > temp)
- delta->xed_startoff = temp;
- if (delta->xed_blockcount < temp2)
- delta->xed_blockcount = temp2;
- }
done:
*logflagsp = rval;
return error;
@@ -1736,7 +1633,6 @@ xfs_bmap_add_extent_hole_delay(
xfs_extnum_t idx, /* extent number to update/insert */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int rsvd) /* OK to allocate reserved blocks */
{
xfs_bmbt_rec_host_t *ep; /* extent record for idx */
@@ -1747,7 +1643,6 @@ xfs_bmap_add_extent_hole_delay(
xfs_bmbt_irec_t right; /* right neighbor extent entry */
int state; /* state bits, accessed thru macros */
xfs_filblks_t temp=0; /* temp for indirect calculations */
- xfs_filblks_t temp2=0;
ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
ep = xfs_iext_get_ext(ifp, idx);
@@ -1819,9 +1714,6 @@ xfs_bmap_add_extent_hole_delay(
xfs_iext_remove(ip, idx, 1, state);
ip->i_df.if_lastex = idx - 1;
- /* DELTA: Two in-core extents were replaced by one. */
- temp2 = temp;
- temp = left.br_startoff;
break;
case BMAP_LEFT_CONTIG:
@@ -1841,9 +1733,6 @@ xfs_bmap_add_extent_hole_delay(
trace_xfs_bmap_post_update(ip, idx - 1, state, _THIS_IP_);
ip->i_df.if_lastex = idx - 1;
- /* DELTA: One in-core extent grew into a hole. */
- temp2 = temp;
- temp = left.br_startoff;
break;
case BMAP_RIGHT_CONTIG:
@@ -1862,9 +1751,6 @@ xfs_bmap_add_extent_hole_delay(
trace_xfs_bmap_post_update(ip, idx, state, _THIS_IP_);
ip->i_df.if_lastex = idx;
- /* DELTA: One in-core extent grew into a hole. */
- temp2 = temp;
- temp = new->br_startoff;
break;
case 0:
@@ -1876,9 +1762,6 @@ xfs_bmap_add_extent_hole_delay(
oldlen = newlen = 0;
xfs_iext_insert(ip, idx, 1, new, state);
ip->i_df.if_lastex = idx;
- /* DELTA: A new in-core extent was added in a hole. */
- temp2 = new->br_blockcount;
- temp = new->br_startoff;
break;
}
if (oldlen != newlen) {
@@ -1889,13 +1772,6 @@ xfs_bmap_add_extent_hole_delay(
* Nothing to do for disk quota accounting here.
*/
}
- if (delta) {
- temp2 += temp;
- if (delta->xed_startoff > temp)
- delta->xed_startoff = temp;
- if (delta->xed_blockcount < temp2)
- delta->xed_blockcount = temp2;
- }
*logflagsp = 0;
return 0;
}
@@ -1911,7 +1787,6 @@ xfs_bmap_add_extent_hole_real(
xfs_btree_cur_t *cur, /* if null, not a btree */
xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int whichfork) /* data or attr fork */
{
xfs_bmbt_rec_host_t *ep; /* pointer to extent entry ins. point */
@@ -1922,8 +1797,6 @@ xfs_bmap_add_extent_hole_real(
xfs_bmbt_irec_t right; /* right neighbor extent entry */
int rval=0; /* return value (logging flags) */
int state; /* state bits, accessed thru macros */
- xfs_filblks_t temp=0;
- xfs_filblks_t temp2=0;
ifp = XFS_IFORK_PTR(ip, whichfork);
ASSERT(idx <= ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t));
@@ -2020,11 +1893,6 @@ xfs_bmap_add_extent_hole_real(
left.br_state)))
goto done;
}
- /* DELTA: Two in-core extents were replaced by one. */
- temp = left.br_startoff;
- temp2 = left.br_blockcount +
- new->br_blockcount +
- right.br_blockcount;
break;
case BMAP_LEFT_CONTIG:
@@ -2056,10 +1924,6 @@ xfs_bmap_add_extent_hole_real(
left.br_state)))
goto done;
}
- /* DELTA: One in-core extent grew. */
- temp = left.br_startoff;
- temp2 = left.br_blockcount +
- new->br_blockcount;
break;
case BMAP_RIGHT_CONTIG:
@@ -2092,10 +1956,6 @@ xfs_bmap_add_extent_hole_real(
right.br_state)))
goto done;
}
- /* DELTA: One in-core extent grew. */
- temp = new->br_startoff;
- temp2 = new->br_blockcount +
- right.br_blockcount;
break;
case 0:
@@ -2123,18 +1983,8 @@ xfs_bmap_add_extent_hole_real(
goto done;
XFS_WANT_CORRUPTED_GOTO(i == 1, done);
}
- /* DELTA: A new extent was added in a hole. */
- temp = new->br_startoff;
- temp2 = new->br_blockcount;
break;
}
- if (delta) {
- temp2 += temp;
- if (delta->xed_startoff > temp)
- delta->xed_startoff = temp;
- if (delta->xed_blockcount < temp2)
- delta->xed_blockcount = temp2;
- }
done:
*logflagsp = rval;
return error;
@@ -2959,7 +2809,6 @@ xfs_bmap_del_extent(
xfs_btree_cur_t *cur, /* if null, not a btree */
xfs_bmbt_irec_t *del, /* data to remove from extents */
int *logflagsp, /* inode logging flags */
- xfs_extdelta_t *delta, /* Change made to incore extents */
int whichfork, /* data or attr fork */
int rsvd) /* OK to allocate reserved blocks */
{
@@ -3265,14 +3114,6 @@ xfs_bmap_del_extent(
if (da_old > da_new)
xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS, (int64_t)(da_old - da_new),
rsvd);
- if (delta) {
- /* DELTA: report the original extent. */
- if (delta->xed_startoff > got.br_startoff)
- delta->xed_startoff = got.br_startoff;
- if (delta->xed_blockcount < got.br_startoff+got.br_blockcount)
- delta->xed_blockcount = got.br_startoff +
- got.br_blockcount;
- }
done:
*logflagsp = flags;
return error;
@@ -3754,9 +3595,10 @@ xfs_bmap_add_attrfork(
ip->i_d.di_aformat = XFS_DINODE_FMT_EXTENTS;
}
ASSERT(ip->i_d.di_anextents == 0);
- IHOLD(ip);
- xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+
+ xfs_trans_ijoin_ref(tp, ip, XFS_ILOCK_EXCL);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+
switch (ip->i_d.di_format) {
case XFS_DINODE_FMT_DEV:
ip->i_d.di_forkoff = roundup(sizeof(xfs_dev_t), 8) >> 3;
@@ -4483,8 +4325,7 @@ xfs_bmapi(
xfs_extlen_t total, /* total blocks needed */
xfs_bmbt_irec_t *mval, /* output: map values */
int *nmap, /* i/o: mval size/count */
- xfs_bmap_free_t *flist, /* i/o: list extents to free */
- xfs_extdelta_t *delta) /* o: change made to incore extents */
+ xfs_bmap_free_t *flist) /* i/o: list extents to free */
{
xfs_fsblock_t abno; /* allocated block number */
xfs_extlen_t alen; /* allocated extent length */
@@ -4596,10 +4437,7 @@ xfs_bmapi(
end = bno + len;
obno = bno;
bma.ip = NULL;
- if (delta) {
- delta->xed_startoff = NULLFILEOFF;
- delta->xed_blockcount = 0;
- }
+
while (bno < end && n < *nmap) {
/*
* Reading past eof, act as though there's a hole
@@ -4620,19 +4458,13 @@ xfs_bmapi(
* allocate the stuff asked for in this bmap call
* but that wouldn't be as good.
*/
- if (wasdelay && !(flags & XFS_BMAPI_EXACT)) {
+ if (wasdelay) {
alen = (xfs_extlen_t)got.br_blockcount;
aoff = got.br_startoff;
if (lastx != NULLEXTNUM && lastx) {
ep = xfs_iext_get_ext(ifp, lastx - 1);
xfs_bmbt_get_all(ep, &prev);
}
- } else if (wasdelay) {
- alen = (xfs_extlen_t)
- XFS_FILBLKS_MIN(len,
- (got.br_startoff +
- got.br_blockcount) - bno);
- aoff = bno;
} else {
alen = (xfs_extlen_t)
XFS_FILBLKS_MIN(len, MAXEXTLEN);
@@ -4831,7 +4663,7 @@ xfs_bmapi(
got.br_state = XFS_EXT_UNWRITTEN;
}
error = xfs_bmap_add_extent(ip, lastx, &cur, &got,
- firstblock, flist, &tmp_logflags, delta,
+ firstblock, flist, &tmp_logflags,
whichfork, (flags & XFS_BMAPI_RSVBLOCKS));
logflags |= tmp_logflags;
if (error)
@@ -4927,7 +4759,7 @@ xfs_bmapi(
}
mval->br_state = XFS_EXT_NORM;
error = xfs_bmap_add_extent(ip, lastx, &cur, mval,
- firstblock, flist, &tmp_logflags, delta,
+ firstblock, flist, &tmp_logflags,
whichfork, (flags & XFS_BMAPI_RSVBLOCKS));
logflags |= tmp_logflags;
if (error)
@@ -5017,14 +4849,6 @@ xfs_bmapi(
ASSERT(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE ||
XFS_IFORK_NEXTENTS(ip, whichfork) > ifp->if_ext_max);
error = 0;
- if (delta && delta->xed_startoff != NULLFILEOFF) {
- /* A change was actually made.
- * Note that delta->xed_blockount is an offset at this
- * point and needs to be converted to a block count.
- */
- ASSERT(delta->xed_blockcount > delta->xed_startoff);
- delta->xed_blockcount -= delta->xed_startoff;
- }
error0:
/*
* Log everything. Do this after conversion, there's no point in
@@ -5136,8 +4960,6 @@ xfs_bunmapi(
xfs_fsblock_t *firstblock, /* first allocated block
controls a.g. for allocs */
xfs_bmap_free_t *flist, /* i/o: list extents to free */
- xfs_extdelta_t *delta, /* o: change made to incore
- extents */
int *done) /* set if not done yet */
{
xfs_btree_cur_t *cur; /* bmap btree cursor */
@@ -5196,10 +5018,7 @@ xfs_bunmapi(
bno = start + len - 1;
ep = xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got,
&prev);
- if (delta) {
- delta->xed_startoff = NULLFILEOFF;
- delta->xed_blockcount = 0;
- }
+
/*
* Check to see if the given block number is past the end of the
* file, back up to the last block if so...
@@ -5297,7 +5116,7 @@ xfs_bunmapi(
}
del.br_state = XFS_EXT_UNWRITTEN;
error = xfs_bmap_add_extent(ip, lastx, &cur, &del,
- firstblock, flist, &logflags, delta,
+ firstblock, flist, &logflags,
XFS_DATA_FORK, 0);
if (error)
goto error0;
@@ -5352,7 +5171,7 @@ xfs_bunmapi(
prev.br_state = XFS_EXT_UNWRITTEN;
error = xfs_bmap_add_extent(ip, lastx - 1, &cur,
&prev, firstblock, flist, &logflags,
- delta, XFS_DATA_FORK, 0);
+ XFS_DATA_FORK, 0);
if (error)
goto error0;
goto nodelete;
@@ -5361,7 +5180,7 @@ xfs_bunmapi(
del.br_state = XFS_EXT_UNWRITTEN;
error = xfs_bmap_add_extent(ip, lastx, &cur,
&del, firstblock, flist, &logflags,
- delta, XFS_DATA_FORK, 0);
+ XFS_DATA_FORK, 0);
if (error)
goto error0;
goto nodelete;
@@ -5414,7 +5233,7 @@ xfs_bunmapi(
goto error0;
}
error = xfs_bmap_del_extent(ip, tp, lastx, flist, cur, &del,
- &tmp_logflags, delta, whichfork, rsvd);
+ &tmp_logflags, whichfork, rsvd);
logflags |= tmp_logflags;
if (error)
goto error0;
@@ -5471,14 +5290,6 @@ nodelete:
ASSERT(ifp->if_ext_max ==
XFS_IFORK_SIZE(ip, whichfork) / (uint)sizeof(xfs_bmbt_rec_t));
error = 0;
- if (delta && delta->xed_startoff != NULLFILEOFF) {
- /* A change was actually made.
- * Note that delta->xed_blockount is an offset at this
- * point and needs to be converted to a block count.
- */
- ASSERT(delta->xed_blockcount > delta->xed_startoff);
- delta->xed_blockcount -= delta->xed_startoff;
- }
error0:
/*
* Log everything. Do this after conversion, there's no point in
@@ -5605,28 +5416,6 @@ xfs_getbmap(
prealloced = 0;
fixlen = 1LL << 32;
} else {
- /*
- * If the BMV_IF_NO_DMAPI_READ interface bit specified, do
- * not generate a DMAPI read event. Otherwise, if the
- * DM_EVENT_READ bit is set for the file, generate a read
- * event in order that the DMAPI application may do its thing
- * before we return the extents. Usually this means restoring
- * user file data to regions of the file that look like holes.
- *
- * The "old behavior" (from XFS_IOC_GETBMAP) is to not specify
- * BMV_IF_NO_DMAPI_READ so that read events are generated.
- * If this were not true, callers of ioctl(XFS_IOC_GETBMAP)
- * could misinterpret holes in a DMAPI file as true holes,
- * when in fact they may represent offline user data.
- */
- if (DM_EVENT_ENABLED(ip, DM_EVENT_READ) &&
- !(iflags & BMV_IF_NO_DMAPI_READ)) {
- error = XFS_SEND_DATA(mp, DM_EVENT_READ, ip,
- 0, 0, 0, NULL);
- if (error)
- return XFS_ERROR(error);
- }
-
if (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS &&
ip->i_d.di_format != XFS_DINODE_FMT_BTREE &&
ip->i_d.di_format != XFS_DINODE_FMT_LOCAL)
@@ -5713,7 +5502,7 @@ xfs_getbmap(
error = xfs_bmapi(NULL, ip, XFS_BB_TO_FSBT(mp, bmv->bmv_offset),
XFS_BB_TO_FSB(mp, bmv->bmv_length),
bmapi_flags, NULL, 0, map, &nmap,
- NULL, NULL);
+ NULL);
if (error)
goto out_free_map;
ASSERT(nmap <= subnex);
@@ -5859,66 +5648,34 @@ xfs_bmap_eof(
}
#ifdef DEBUG
-STATIC
-xfs_buf_t *
+STATIC struct xfs_buf *
xfs_bmap_get_bp(
- xfs_btree_cur_t *cur,
+ struct xfs_btree_cur *cur,
xfs_fsblock_t bno)
{
- int i;
- xfs_buf_t *bp;
+ struct xfs_log_item_desc *lidp;
+ int i;
if (!cur)
- return(NULL);
-
- bp = NULL;
- for(i = 0; i < XFS_BTREE_MAXLEVELS; i++) {
- bp = cur->bc_bufs[i];
- if (!bp) break;
- if (XFS_BUF_ADDR(bp) == bno)
- break; /* Found it */
- }
- if (i == XFS_BTREE_MAXLEVELS)
- bp = NULL;
-
- if (!bp) { /* Chase down all the log items to see if the bp is there */
- xfs_log_item_chunk_t *licp;
- xfs_trans_t *tp;
-
- tp = cur->bc_tp;
- licp = &tp->t_items;
- while (!bp && licp != NULL) {
- if (xfs_lic_are_all_free(licp)) {
- licp = licp->lic_next;
- continue;
- }
- for (i = 0; i < licp->lic_unused; i++) {
- xfs_log_item_desc_t *lidp;
- xfs_log_item_t *lip;
- xfs_buf_log_item_t *bip;
- xfs_buf_t *lbp;
-
- if (xfs_lic_isfree(licp, i)) {
- continue;
- }
-
- lidp = xfs_lic_slot(licp, i);
- lip = lidp->lid_item;
- if (lip->li_type != XFS_LI_BUF)
- continue;
+ return NULL;
- bip = (xfs_buf_log_item_t *)lip;
- lbp = bip->bli_buf;
+ for (i = 0; i < XFS_BTREE_MAXLEVELS; i++) {
+ if (!cur->bc_bufs[i])
+ break;
+ if (XFS_BUF_ADDR(cur->bc_bufs[i]) == bno)
+ return cur->bc_bufs[i];
+ }
- if (XFS_BUF_ADDR(lbp) == bno) {
- bp = lbp;
- break; /* Found it */
- }
- }
- licp = licp->lic_next;
- }
+ /* Chase down all the log items to see if the bp is there */
+ list_for_each_entry(lidp, &cur->bc_tp->t_items, lid_trans) {
+ struct xfs_buf_log_item *bip;
+ bip = (struct xfs_buf_log_item *)lidp->lid_item;
+ if (bip->bli_item.li_type == XFS_LI_BUF &&
+ XFS_BUF_ADDR(bip->bli_buf) == bno)
+ return bip->bli_buf;
}
- return(bp);
+
+ return NULL;
}
STATIC void
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.