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[XFS] Add parameters to xfs_bmapi() and xfs_bunmapi() to have them report

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the range spanned by modifications to the in-core extent map.  Add
XFS_BUNMAPI() and XFS_SWAP_EXTENTS() macros that call xfs_bunmapi() and
xfs_swap_extents() via the ioops vector. Change all calls that may modify
the in-core extent map for the data fork to go through the ioops vector. 
This allows a cache of extent map data to be kept in sync.

SGI-PV: 947615
SGI-Modid: xfs-linux-melb:xfs-kern:209226a

Signed-off-by: Olaf Weber <olaf@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
This commit is contained in:
Olaf Weber
2006-06-09 14:48:12 +10:00
committed by Nathan Scott
parent 128e6ced24
commit 3e57ecf640
19 changed files with 437 additions and 166 deletions
Download Patch File Download Diff File Expand all files Collapse all files

363
fs/xfs/xfs_bmap.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2000-2005 Silicon Graphics, Inc.
* Copyright (c) 2000-2006 Silicon Graphics, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
@ -101,6 +101,7 @@ 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 */
@ -118,6 +119,7 @@ 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 */
/*
@ -131,6 +133,7 @@ xfs_bmap_add_extent_hole_delay(
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 rsvd); /* OK to allocate reserved blocks */
/*
@ -144,6 +147,7 @@ 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 */
/*
@ -156,7 +160,8 @@ 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 */
int *logflagsp, /* inode logging flags */
xfs_extdelta_t *delta); /* Change made to incore extents */
/*
* xfs_bmap_alloc is called by xfs_bmapi to allocate an extent for a file.
@ -203,6 +208,7 @@ 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 */
@ -530,6 +536,7 @@ 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 */
{
@ -567,6 +574,15 @@ 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.
@ -576,7 +592,7 @@ 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, cur, new,
&logflags, rsvd)))
&logflags, delta, rsvd)))
goto done;
}
/*
@ -587,7 +603,7 @@ 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, whichfork)))
&logflags, delta, whichfork)))
goto done;
} else {
xfs_bmbt_irec_t prev; /* old extent at offset idx */
@ -612,17 +628,17 @@ 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, rsvd)))
&logflags, delta, 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)))
ip, idx, &cur, new, &logflags, delta)))
goto done;
} else {
ASSERT(new->br_state == XFS_EXT_UNWRITTEN);
if ((error = xfs_bmap_add_extent_unwritten_real(
ip, idx, &cur, new, &logflags)))
ip, idx, &cur, new, &logflags, delta)))
goto done;
}
ASSERT(*curp == cur || *curp == NULL);
@ -635,7 +651,7 @@ 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, whichfork)))
new, &logflags, delta, whichfork)))
goto done;
}
}
@ -700,6 +716,7 @@ 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 */
@ -716,8 +733,8 @@ xfs_bmap_add_extent_delay_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; /* value for dnew calculations */
xfs_filblks_t temp2; /* value for dnew calculations */
xfs_filblks_t temp=0; /* value for dnew calculations */
xfs_filblks_t temp2=0;/* value for dnew calculations */
int tmp_rval; /* partial logging flags */
enum { /* bit number definitions for state */
LEFT_CONTIG, RIGHT_CONTIG,
@ -839,6 +856,11 @@ 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 MASK3(LEFT_FILLING, RIGHT_FILLING, LEFT_CONTIG):
@ -872,6 +894,10 @@ 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 MASK3(LEFT_FILLING, RIGHT_FILLING, RIGHT_CONTIG):
@ -906,6 +932,10 @@ 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 MASK2(LEFT_FILLING, RIGHT_FILLING):
@ -936,6 +966,9 @@ xfs_bmap_add_extent_delay_real(
ASSERT(i == 1);
}
*dnew = 0;
/* DELTA: The in-core extent described by new changed type. */
temp = new->br_startoff;
temp2 = new->br_blockcount;
break;
case MASK2(LEFT_FILLING, LEFT_CONTIG):
@ -978,6 +1011,10 @@ xfs_bmap_add_extent_delay_real(
xfs_bmap_trace_post_update(fname, "LF|LC", ip, idx,
XFS_DATA_FORK);
*dnew = temp;
/* DELTA: The boundary between two in-core extents moved. */
temp = LEFT.br_startoff;
temp2 = LEFT.br_blockcount +
PREV.br_blockcount;
break;
case MASK(LEFT_FILLING):
@ -1025,6 +1062,9 @@ xfs_bmap_add_extent_delay_real(
xfs_bmap_trace_post_update(fname, "LF", ip, idx + 1,
XFS_DATA_FORK);
*dnew = temp;
/* DELTA: One in-core extent is split in two. */
temp = PREV.br_startoff;
temp2 = PREV.br_blockcount;
break;
case MASK2(RIGHT_FILLING, RIGHT_CONTIG):
@ -1067,6 +1107,10 @@ xfs_bmap_add_extent_delay_real(
xfs_bmap_trace_post_update(fname, "RF|RC", ip, idx,
XFS_DATA_FORK);
*dnew = temp;
/* DELTA: The boundary between two in-core extents moved. */
temp = PREV.br_startoff;
temp2 = PREV.br_blockcount +
RIGHT.br_blockcount;
break;
case MASK(RIGHT_FILLING):
@ -1112,6 +1156,9 @@ xfs_bmap_add_extent_delay_real(
xfs_bmbt_set_startblock(ep, NULLSTARTBLOCK((int)temp));
xfs_bmap_trace_post_update(fname, "RF", ip, idx, XFS_DATA_FORK);
*dnew = temp;
/* DELTA: One in-core extent is split in two. */
temp = PREV.br_startoff;
temp2 = PREV.br_blockcount;
break;
case 0:
@ -1194,6 +1241,9 @@ xfs_bmap_add_extent_delay_real(
xfs_bmap_trace_post_update(fname, "0", ip, idx + 2,
XFS_DATA_FORK);
*dnew = temp + temp2;
/* DELTA: One in-core extent is split in three. */
temp = PREV.br_startoff;
temp2 = PREV.br_blockcount;
break;
case MASK3(LEFT_FILLING, LEFT_CONTIG, RIGHT_CONTIG):
@ -1209,6 +1259,13 @@ 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;
@ -1235,7 +1292,8 @@ 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 */
int *logflagsp, /* inode logging flags */
xfs_extdelta_t *delta) /* Change made to incore extents */
{
xfs_btree_cur_t *cur; /* btree cursor */
xfs_bmbt_rec_t *ep; /* extent entry for idx */
@ -1252,6 +1310,8 @@ 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;
enum { /* bit number definitions for state */
LEFT_CONTIG, RIGHT_CONTIG,
LEFT_FILLING, RIGHT_FILLING,
@ -1380,6 +1440,11 @@ 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 MASK3(LEFT_FILLING, RIGHT_FILLING, LEFT_CONTIG):
@ -1419,6 +1484,10 @@ 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 MASK3(LEFT_FILLING, RIGHT_FILLING, RIGHT_CONTIG):
@ -1459,6 +1528,10 @@ 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 MASK2(LEFT_FILLING, RIGHT_FILLING):
@ -1487,6 +1560,9 @@ 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 MASK2(LEFT_FILLING, LEFT_CONTIG):
@ -1534,6 +1610,10 @@ 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 MASK(LEFT_FILLING):
@ -1574,6 +1654,9 @@ xfs_bmap_add_extent_unwritten_real(
goto done;
ASSERT(i == 1);
}
/* DELTA: One in-core extent is split in two. */
temp = PREV.br_startoff;
temp2 = PREV.br_blockcount;
break;
case MASK2(RIGHT_FILLING, RIGHT_CONTIG):
@ -1617,6 +1700,10 @@ 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 MASK(RIGHT_FILLING):
@ -1657,6 +1744,9 @@ xfs_bmap_add_extent_unwritten_real(
goto done;
ASSERT(i == 1);
}
/* DELTA: One in-core extent is split in two. */
temp = PREV.br_startoff;
temp2 = PREV.br_blockcount;
break;
case 0:
@ -1710,6 +1800,9 @@ xfs_bmap_add_extent_unwritten_real(
goto done;
ASSERT(i == 1);
}
/* DELTA: One in-core extent is split in three. */
temp = PREV.br_startoff;
temp2 = PREV.br_blockcount;
break;
case MASK3(LEFT_FILLING, LEFT_CONTIG, RIGHT_CONTIG):
@ -1725,6 +1818,13 @@ 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;
@ -1753,6 +1853,7 @@ xfs_bmap_add_extent_hole_delay(
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 rsvd) /* OK to allocate reserved blocks */
{
xfs_bmbt_rec_t *ep; /* extent record for idx */
@ -1765,7 +1866,8 @@ xfs_bmap_add_extent_hole_delay(
xfs_filblks_t oldlen=0; /* old indirect size */
xfs_bmbt_irec_t right; /* right neighbor extent entry */
int state; /* state bits, accessed thru macros */
xfs_filblks_t temp; /* temp for indirect calculations */
xfs_filblks_t temp=0; /* temp for indirect calculations */
xfs_filblks_t temp2=0;
enum { /* bit number definitions for state */
LEFT_CONTIG, RIGHT_CONTIG,
LEFT_DELAY, RIGHT_DELAY,
@ -1844,6 +1946,9 @@ xfs_bmap_add_extent_hole_delay(
XFS_DATA_FORK);
xfs_iext_remove(ifp, idx, 1);
ip->i_df.if_lastex = idx - 1;
/* DELTA: Two in-core extents were replaced by one. */
temp2 = temp;
temp = left.br_startoff;
break;
case MASK(LEFT_CONTIG):
@ -1864,6 +1969,9 @@ xfs_bmap_add_extent_hole_delay(
xfs_bmap_trace_post_update(fname, "LC", ip, idx - 1,
XFS_DATA_FORK);
ip->i_df.if_lastex = idx - 1;
/* DELTA: One in-core extent grew into a hole. */
temp2 = temp;
temp = left.br_startoff;
break;
case MASK(RIGHT_CONTIG):
@ -1881,6 +1989,9 @@ xfs_bmap_add_extent_hole_delay(
NULLSTARTBLOCK((int)newlen), temp, right.br_state);
xfs_bmap_trace_post_update(fname, "RC", ip, idx, XFS_DATA_FORK);
ip->i_df.if_lastex = idx;
/* DELTA: One in-core extent grew into a hole. */
temp2 = temp;
temp = new->br_startoff;
break;
case 0:
@ -1894,6 +2005,9 @@ xfs_bmap_add_extent_hole_delay(
XFS_DATA_FORK);
xfs_iext_insert(ifp, idx, 1, new);
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) {
@ -1904,6 +2018,13 @@ 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;
#undef MASK
@ -1925,6 +2046,7 @@ 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_t *ep; /* pointer to extent entry ins. point */
@ -1936,7 +2058,10 @@ xfs_bmap_add_extent_hole_real(
xfs_ifork_t *ifp; /* inode fork pointer */
xfs_bmbt_irec_t left; /* left neighbor extent entry */
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;
enum { /* bit number definitions for state */
LEFT_CONTIG, RIGHT_CONTIG,
LEFT_DELAY, RIGHT_DELAY,
@ -1993,6 +2118,7 @@ xfs_bmap_add_extent_hole_real(
left.br_blockcount + new->br_blockcount +
right.br_blockcount <= MAXEXTLEN));
error = 0;
/*
* Select which case we're in here, and implement it.
*/
@ -2018,25 +2144,35 @@ xfs_bmap_add_extent_hole_real(
XFS_IFORK_NEXT_SET(ip, whichfork,
XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
if (cur == NULL) {
*logflagsp = XFS_ILOG_CORE | XFS_ILOG_FEXT(whichfork);
return 0;
rval = XFS_ILOG_CORE | XFS_ILOG_FEXT(whichfork);
} else {
rval = XFS_ILOG_CORE;
if ((error = xfs_bmbt_lookup_eq(cur,
right.br_startoff,
right.br_startblock,
right.br_blockcount, &i)))
goto done;
ASSERT(i == 1);
if ((error = xfs_bmbt_delete(cur, &i)))
goto done;
ASSERT(i == 1);
if ((error = xfs_bmbt_decrement(cur, 0, &i)))
goto done;
ASSERT(i == 1);
if ((error = xfs_bmbt_update(cur, left.br_startoff,
left.br_startblock,
left.br_blockcount +
new->br_blockcount +
right.br_blockcount,
left.br_state)))
goto done;
}
*logflagsp = XFS_ILOG_CORE;
if ((error = xfs_bmbt_lookup_eq(cur, right.br_startoff,
right.br_startblock, right.br_blockcount, &i)))
return error;
ASSERT(i == 1);
if ((error = xfs_bmbt_delete(cur, &i)))
return error;
ASSERT(i == 1);
if ((error = xfs_bmbt_decrement(cur, 0, &i)))
return error;
ASSERT(i == 1);
error = xfs_bmbt_update(cur, left.br_startoff,
left.br_startblock,
left.br_blockcount + new->br_blockcount +
right.br_blockcount, left.br_state);
return error;
/* 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 MASK(LEFT_CONTIG):
/*
@ -2050,19 +2186,27 @@ xfs_bmap_add_extent_hole_real(
xfs_bmap_trace_post_update(fname, "LC", ip, idx - 1, whichfork);
ifp->if_lastex = idx - 1;
if (cur == NULL) {
*logflagsp = XFS_ILOG_FEXT(whichfork);
return 0;
rval = XFS_ILOG_FEXT(whichfork);
} else {
rval = 0;
if ((error = xfs_bmbt_lookup_eq(cur,
left.br_startoff,
left.br_startblock,
left.br_blockcount, &i)))
goto done;
ASSERT(i == 1);
if ((error = xfs_bmbt_update(cur, left.br_startoff,
left.br_startblock,
left.br_blockcount +
new->br_blockcount,
left.br_state)))
goto done;
}
*logflagsp = 0;
if ((error = xfs_bmbt_lookup_eq(cur, left.br_startoff,
left.br_startblock, left.br_blockcount, &i)))
return error;
ASSERT(i == 1);
error = xfs_bmbt_update(cur, left.br_startoff,
left.br_startblock,
left.br_blockcount + new->br_blockcount,
left.br_state);
return error;
/* DELTA: One in-core extent grew. */
temp = left.br_startoff;
temp2 = left.br_blockcount +
new->br_blockcount;
break;
case MASK(RIGHT_CONTIG):
/*
@ -2077,19 +2221,27 @@ xfs_bmap_add_extent_hole_real(
xfs_bmap_trace_post_update(fname, "RC", ip, idx, whichfork);
ifp->if_lastex = idx;
if (cur == NULL) {
*logflagsp = XFS_ILOG_FEXT(whichfork);
return 0;
rval = XFS_ILOG_FEXT(whichfork);
} else {
rval = 0;
if ((error = xfs_bmbt_lookup_eq(cur,
right.br_startoff,
right.br_startblock,
right.br_blockcount, &i)))
goto done;
ASSERT(i == 1);
if ((error = xfs_bmbt_update(cur, new->br_startoff,
new->br_startblock,
new->br_blockcount +
right.br_blockcount,
right.br_state)))
goto done;
}
*logflagsp = 0;
if ((error = xfs_bmbt_lookup_eq(cur, right.br_startoff,
right.br_startblock, right.br_blockcount, &i)))
return error;
ASSERT(i == 1);
error = xfs_bmbt_update(cur, new->br_startoff,
new->br_startblock,
new->br_blockcount + right.br_blockcount,
right.br_state);
return error;
/* DELTA: One in-core extent grew. */
temp = new->br_startoff;
temp2 = new->br_blockcount +
right.br_blockcount;
break;
case 0:
/*
@ -2104,29 +2256,41 @@ xfs_bmap_add_extent_hole_real(
XFS_IFORK_NEXT_SET(ip, whichfork,
XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
if (cur == NULL) {
*logflagsp = XFS_ILOG_CORE | XFS_ILOG_FEXT(whichfork);
return 0;
rval = XFS_ILOG_CORE | XFS_ILOG_FEXT(whichfork);
} else {
rval = XFS_ILOG_CORE;
if ((error = xfs_bmbt_lookup_eq(cur,
new->br_startoff,
new->br_startblock,
new->br_blockcount, &i)))
goto done;
ASSERT(i == 0);
cur->bc_rec.b.br_state = new->br_state;
if ((error = xfs_bmbt_insert(cur, &i)))
goto done;
ASSERT(i == 1);
}
*logflagsp = XFS_ILOG_CORE;
if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
new->br_startblock, new->br_blockcount, &i)))
return error;
ASSERT(i == 0);
cur->bc_rec.b.br_state = new->br_state;
if ((error = xfs_bmbt_insert(cur, &i)))
return error;
ASSERT(i == 1);
return 0;
/* 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;
#undef MASK
#undef MASK2
#undef STATE_SET
#undef STATE_TEST
#undef STATE_SET_TEST
#undef SWITCH_STATE
/* NOTREACHED */
ASSERT(0);
return 0; /* keep gcc quite */
}
/*
@ -2885,6 +3049,7 @@ 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 */
{
@ -3193,6 +3358,14 @@ xfs_bmap_del_extent(
if (da_old > da_new)
xfs_mod_incore_sb(mp, XFS_SBS_FDBLOCKS, (int)(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;
@ -3753,7 +3926,7 @@ xfs_bunmap_trace(
if (ip->i_rwtrace == NULL)
return;
ktrace_enter(ip->i_rwtrace,
(void *)(__psint_t)XFS_BUNMAPI,
(void *)(__psint_t)XFS_BUNMAP,
(void *)ip,
(void *)(__psint_t)((ip->i_d.di_size >> 32) & 0xffffffff),
(void *)(__psint_t)(ip->i_d.di_size & 0xffffffff),
@ -4538,7 +4711,8 @@ 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_bmap_free_t *flist, /* i/o: list extents to free */
xfs_extdelta_t *delta) /* o: change made to incore extents */
{
xfs_fsblock_t abno; /* allocated block number */
xfs_extlen_t alen; /* allocated extent length */
@ -4650,6 +4824,10 @@ 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
@ -4886,8 +5064,8 @@ xfs_bmapi(
got.br_state = XFS_EXT_UNWRITTEN;
}
error = xfs_bmap_add_extent(ip, lastx, &cur, &got,
firstblock, flist, &tmp_logflags, whichfork,
(flags & XFS_BMAPI_RSVBLOCKS));
firstblock, flist, &tmp_logflags, delta,
whichfork, (flags & XFS_BMAPI_RSVBLOCKS));
logflags |= tmp_logflags;
if (error)
goto error0;
@ -4983,8 +5161,8 @@ xfs_bmapi(
}
mval->br_state = XFS_EXT_NORM;
error = xfs_bmap_add_extent(ip, lastx, &cur, mval,
firstblock, flist, &tmp_logflags, whichfork,
(flags & XFS_BMAPI_RSVBLOCKS));
firstblock, flist, &tmp_logflags, delta,
whichfork, (flags & XFS_BMAPI_RSVBLOCKS));
logflags |= tmp_logflags;
if (error)
goto error0;
@ -5073,7 +5251,14 @@ 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
@ -5185,6 +5370,8 @@ 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 */
@ -5242,6 +5429,10 @@ 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...
@ -5340,7 +5531,8 @@ xfs_bunmapi(
}
del.br_state = XFS_EXT_UNWRITTEN;
error = xfs_bmap_add_extent(ip, lastx, &cur, &del,
firstblock, flist, &logflags, XFS_DATA_FORK, 0);
firstblock, flist, &logflags, delta,
XFS_DATA_FORK, 0);
if (error)
goto error0;
goto nodelete;
@ -5394,7 +5586,7 @@ xfs_bunmapi(
prev.br_state = XFS_EXT_UNWRITTEN;
error = xfs_bmap_add_extent(ip, lastx - 1, &cur,
&prev, firstblock, flist, &logflags,
XFS_DATA_FORK, 0);
delta, XFS_DATA_FORK, 0);
if (error)
goto error0;
goto nodelete;
@ -5403,7 +5595,7 @@ xfs_bunmapi(
del.br_state = XFS_EXT_UNWRITTEN;
error = xfs_bmap_add_extent(ip, lastx, &cur,
&del, firstblock, flist, &logflags,
XFS_DATA_FORK, 0);
delta, XFS_DATA_FORK, 0);
if (error)
goto error0;
goto nodelete;
@ -5456,7 +5648,7 @@ xfs_bunmapi(
goto error0;
}
error = xfs_bmap_del_extent(ip, tp, lastx, flist, cur, &del,
&tmp_logflags, whichfork, rsvd);
&tmp_logflags, delta, whichfork, rsvd);
logflags |= tmp_logflags;
if (error)
goto error0;
@ -5513,6 +5705,14 @@ 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
@ -5689,7 +5889,8 @@ xfs_getbmap(
nmap = (nexleft > subnex) ? subnex : nexleft;
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);
bmapi_flags, NULL, 0, map, &nmap,
NULL, NULL);
if (error)
goto unlock_and_return;
ASSERT(nmap <= subnex);