[XFS] 929045 567344 This mod re-organizes some of the in-core file extent
code to prepare for an upcoming mod which will introduce multi-level
in-core extent allocations. Although the in-core extent management is
using a new code path in this mod, the functionality remains the same.
Major changes include: - Introduce 10 new subroutines which re-orgainze
the existing code but do NOT change functionality:
xfs_iext_get_ext() xfs_iext_insert() xfs_iext_add()
xfs_iext_remove() xfs_iext_remove_inline()
xfs_iext_remove_direct() xfs_iext_realloc_direct()
xfs_iext_direct_to_inline() xfs_iext_inline_to_direct()
xfs_iext_destroy() - Remove 2 subroutines (functionality moved to new
subroutines above): xfs_iext_realloc() -replaced by xfs_iext_add()
and xfs_iext_remove() xfs_bmap_insert_exlist() - replaced by
xfs_iext_insert() xfs_bmap_delete_exlist() - replaced by
xfs_iext_remove() - Replace all hard-coded (indexed) extent assignments
with a call to xfs_iext_get_ext() - Replace all extent record pointer
arithmetic (ep++, ep--, base + lastx,..) with calls to
xfs_iext_get_ext() - Update comments to remove the idea of a single
"extent list" and introduce "extent record" terminology instead
SGI-PV: 928864
SGI-Modid: xfs-linux-melb:xfs-kern:207390a
Signed-off-by: Mandy Kirkconnell <alkirkco@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 70625e5..53c47a1 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -89,7 +89,7 @@
int *flags); /* inode logging flags */
/*
- * Called by xfs_bmapi to update extent list structure and the btree
+ * Called by xfs_bmapi to update file extent records and the btree
* after allocating space (or doing a delayed allocation).
*/
STATIC int /* error */
@@ -97,7 +97,7 @@
xfs_inode_t *ip, /* incore inode pointer */
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 put in extent list */
+ xfs_bmbt_irec_t *new, /* new data to add to file extents */
xfs_fsblock_t *first, /* pointer to firstblock variable */
xfs_bmap_free_t *flist, /* list of extents to be freed */
int *logflagsp, /* inode logging flags */
@@ -113,7 +113,7 @@
xfs_inode_t *ip, /* incore inode pointer */
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 put in extent list */
+ xfs_bmbt_irec_t *new, /* new data to add to file extents */
xfs_filblks_t *dnew, /* new delayed-alloc indirect blocks */
xfs_fsblock_t *first, /* pointer to firstblock variable */
xfs_bmap_free_t *flist, /* list of extents to be freed */
@@ -129,7 +129,7 @@
xfs_inode_t *ip, /* incore inode pointer */
xfs_extnum_t idx, /* extent number to update/insert */
xfs_btree_cur_t *cur, /* if null, not a btree */
- xfs_bmbt_irec_t *new, /* new data to put in extent list */
+ xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp,/* inode logging flags */
int rsvd); /* OK to allocate reserved blocks */
@@ -142,7 +142,7 @@
xfs_inode_t *ip, /* incore inode pointer */
xfs_extnum_t idx, /* extent number to update/insert */
xfs_btree_cur_t *cur, /* if null, not a btree */
- xfs_bmbt_irec_t *new, /* new data to put in extent list */
+ xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp, /* inode logging flags */
int whichfork); /* data or attr fork */
@@ -155,7 +155,7 @@
xfs_inode_t *ip, /* incore inode pointer */
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 put in extent list */
+ xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp); /* inode logging flags */
/*
@@ -169,7 +169,7 @@
/*
* Transform a btree format file with only one leaf node, where the
* extents list will fit in the inode, into an extents format file.
- * Since the extent list is already in-core, all we have to do is
+ * Since the file extents are already in-core, all we have to do is
* give up the space for the btree root and pitch the leaf block.
*/
STATIC int /* error */
@@ -191,7 +191,7 @@
#endif
/*
- * Called by xfs_bmapi to update extent list structure and the btree
+ * Called by xfs_bmapi to update file extent records and the btree
* after removing space (or undoing a delayed allocation).
*/
STATIC int /* error */
@@ -201,7 +201,7 @@
xfs_extnum_t idx, /* extent number to update/insert */
xfs_bmap_free_t *flist, /* list of extents to be freed */
xfs_btree_cur_t *cur, /* if null, not a btree */
- xfs_bmbt_irec_t *new, /* new data to put in extent list */
+ xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp,/* inode logging flags */
int whichfork, /* data or attr fork */
int rsvd); /* OK to allocate reserved blocks */
@@ -217,18 +217,6 @@
xfs_bmap_free_item_t *free); /* list item to be freed */
/*
- * Remove count entries from the extents array for inode "ip", starting
- * at index "idx". Copies the remaining items down over the deleted ones,
- * and gives back the excess memory.
- */
-STATIC void
-xfs_bmap_delete_exlist(
- xfs_inode_t *ip, /* incode inode pointer */
- xfs_extnum_t idx, /* starting delete index */
- xfs_extnum_t count, /* count of items to delete */
- int whichfork); /* data or attr fork */
-
-/*
* Convert an extents-format file into a btree-format file.
* The new file will have a root block (in the inode) and a single child block.
*/
@@ -244,18 +232,6 @@
int whichfork); /* data or attr fork */
/*
- * Insert new item(s) in the extent list for inode "ip".
- * Count new items are inserted at offset idx.
- */
-STATIC void
-xfs_bmap_insert_exlist(
- xfs_inode_t *ip, /* incore inode pointer */
- xfs_extnum_t idx, /* starting index of new items */
- xfs_extnum_t count, /* number of inserted items */
- xfs_bmbt_irec_t *new, /* items to insert */
- int whichfork); /* data or attr fork */
-
-/*
* Convert a local file to an extents file.
* This code is sort of bogus, since the file data needs to get
* logged so it won't be lost. The bmap-level manipulations are ok, though.
@@ -316,7 +292,7 @@
int whichfork); /* data or attr fork */
/*
- * Add bmap trace entry prior to a call to xfs_bmap_delete_exlist.
+ * Add bmap trace entry prior to a call to xfs_iext_remove.
*/
STATIC void
xfs_bmap_trace_delete(
@@ -328,7 +304,7 @@
int whichfork); /* data or attr fork */
/*
- * Add bmap trace entry prior to a call to xfs_bmap_insert_exlist, or
+ * Add bmap trace entry prior to a call to xfs_iext_insert, or
* reading in the extents list from the disk (in the btree).
*/
STATIC void
@@ -343,7 +319,7 @@
int whichfork); /* data or attr fork */
/*
- * Add bmap trace entry after updating an extent list entry in place.
+ * Add bmap trace entry after updating an extent record in place.
*/
STATIC void
xfs_bmap_trace_post_update(
@@ -354,7 +330,7 @@
int whichfork); /* data or attr fork */
/*
- * Add bmap trace entry prior to updating an extent list entry in place.
+ * Add bmap trace entry prior to updating an extent record in place.
*/
STATIC void
xfs_bmap_trace_pre_update(
@@ -413,19 +389,24 @@
xfs_bmap_count_tree(
xfs_mount_t *mp,
xfs_trans_t *tp,
+ xfs_ifork_t *ifp,
xfs_fsblock_t blockno,
int levelin,
int *count);
STATIC int
xfs_bmap_count_leaves(
- xfs_bmbt_rec_t *frp,
+ xfs_ifork_t *ifp,
+ xfs_extnum_t idx,
int numrecs,
int *count);
STATIC int
xfs_bmap_disk_count_leaves(
- xfs_bmbt_rec_t *frp,
+ xfs_ifork_t *ifp,
+ xfs_mount_t *mp,
+ xfs_extnum_t idx,
+ xfs_bmbt_block_t *block,
int numrecs,
int *count);
@@ -537,7 +518,7 @@
}
/*
- * Called by xfs_bmapi to update extent list structure and the btree
+ * Called by xfs_bmapi to update file extent records and the btree
* after allocating space (or doing a delayed allocation).
*/
STATIC int /* error */
@@ -545,7 +526,7 @@
xfs_inode_t *ip, /* incore inode pointer */
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 put in extent list */
+ xfs_bmbt_irec_t *new, /* new data to add to file extents */
xfs_fsblock_t *first, /* pointer to firstblock variable */
xfs_bmap_free_t *flist, /* list of extents to be freed */
int *logflagsp, /* inode logging flags */
@@ -578,7 +559,7 @@
if (nextents == 0) {
xfs_bmap_trace_insert(fname, "insert empty", ip, 0, 1, new,
NULL, whichfork);
- xfs_bmap_insert_exlist(ip, 0, 1, new, whichfork);
+ xfs_iext_insert(ifp, 0, 1, new);
ASSERT(cur == NULL);
ifp->if_lastex = 0;
if (!ISNULLSTARTBLOCK(new->br_startblock)) {
@@ -614,7 +595,7 @@
/*
* Get the record referred to by idx.
*/
- xfs_bmbt_get_all(&ifp->if_u1.if_extents[idx], &prev);
+ xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), &prev);
/*
* If it's a real allocation record, and the new allocation ends
* after the start of the referred to record, then we're filling
@@ -714,14 +695,13 @@
xfs_inode_t *ip, /* incore inode pointer */
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 put in extent list */
+ xfs_bmbt_irec_t *new, /* new data to add to file extents */
xfs_filblks_t *dnew, /* new delayed-alloc indirect blocks */
xfs_fsblock_t *first, /* pointer to firstblock variable */
xfs_bmap_free_t *flist, /* list of extents to be freed */
int *logflagsp, /* inode logging flags */
int rsvd) /* OK to use reserved data block allocation */
{
- xfs_bmbt_rec_t *base; /* base of extent entry list */
xfs_btree_cur_t *cur; /* btree cursor */
int diff; /* temp value */
xfs_bmbt_rec_t *ep; /* extent entry for idx */
@@ -730,6 +710,7 @@
static char fname[] = "xfs_bmap_add_extent_delay_real";
#endif
int i; /* temp state */
+ xfs_ifork_t *ifp; /* inode fork pointer */
xfs_fileoff_t new_endoff; /* end offset of new entry */
xfs_bmbt_irec_t r[3]; /* neighbor extent entries */
/* left is 0, right is 1, prev is 2 */
@@ -763,8 +744,8 @@
* Set up a bunch of variables to make the tests simpler.
*/
cur = *curp;
- base = ip->i_df.if_u1.if_extents;
- ep = &base[idx];
+ ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
+ ep = xfs_iext_get_ext(ifp, idx);
xfs_bmbt_get_all(ep, &PREV);
new_endoff = new->br_startoff + new->br_blockcount;
ASSERT(PREV.br_startoff <= new->br_startoff);
@@ -781,7 +762,7 @@
* Don't set contiguous if the combined extent would be too large.
*/
if (STATE_SET_TEST(LEFT_VALID, idx > 0)) {
- xfs_bmbt_get_all(ep - 1, &LEFT);
+ xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx - 1), &LEFT);
STATE_SET(LEFT_DELAY, ISNULLSTARTBLOCK(LEFT.br_startblock));
}
STATE_SET(LEFT_CONTIG,
@@ -798,7 +779,7 @@
if (STATE_SET_TEST(RIGHT_VALID,
idx <
ip->i_df.if_bytes / (uint)sizeof(xfs_bmbt_rec_t) - 1)) {
- xfs_bmbt_get_all(ep + 1, &RIGHT);
+ xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx + 1), &RIGHT);
STATE_SET(RIGHT_DELAY, ISNULLSTARTBLOCK(RIGHT.br_startblock));
}
STATE_SET(RIGHT_CONTIG,
@@ -825,14 +806,14 @@
*/
xfs_bmap_trace_pre_update(fname, "LF|RF|LC|RC", ip, idx - 1,
XFS_DATA_FORK);
- xfs_bmbt_set_blockcount(ep - 1,
+ xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, idx - 1),
LEFT.br_blockcount + PREV.br_blockcount +
RIGHT.br_blockcount);
xfs_bmap_trace_post_update(fname, "LF|RF|LC|RC", ip, idx - 1,
XFS_DATA_FORK);
xfs_bmap_trace_delete(fname, "LF|RF|LC|RC", ip, idx, 2,
XFS_DATA_FORK);
- xfs_bmap_delete_exlist(ip, idx, 2, XFS_DATA_FORK);
+ xfs_iext_remove(ifp, idx, 2);
ip->i_df.if_lastex = idx - 1;
ip->i_d.di_nextents--;
if (cur == NULL)
@@ -867,14 +848,14 @@
*/
xfs_bmap_trace_pre_update(fname, "LF|RF|LC", ip, idx - 1,
XFS_DATA_FORK);
- xfs_bmbt_set_blockcount(ep - 1,
+ xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, idx - 1),
LEFT.br_blockcount + PREV.br_blockcount);
xfs_bmap_trace_post_update(fname, "LF|RF|LC", ip, idx - 1,
XFS_DATA_FORK);
ip->i_df.if_lastex = idx - 1;
xfs_bmap_trace_delete(fname, "LF|RF|LC", ip, idx, 1,
XFS_DATA_FORK);
- xfs_bmap_delete_exlist(ip, idx, 1, XFS_DATA_FORK);
+ xfs_iext_remove(ifp, idx, 1);
if (cur == NULL)
rval = XFS_ILOG_DEXT;
else {
@@ -908,7 +889,7 @@
ip->i_df.if_lastex = idx;
xfs_bmap_trace_delete(fname, "LF|RF|RC", ip, idx + 1, 1,
XFS_DATA_FORK);
- xfs_bmap_delete_exlist(ip, idx + 1, 1, XFS_DATA_FORK);
+ xfs_iext_remove(ifp, idx + 1, 1);
if (cur == NULL)
rval = XFS_ILOG_DEXT;
else {
@@ -964,7 +945,7 @@
*/
xfs_bmap_trace_pre_update(fname, "LF|LC", ip, idx - 1,
XFS_DATA_FORK);
- xfs_bmbt_set_blockcount(ep - 1,
+ xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, idx - 1),
LEFT.br_blockcount + new->br_blockcount);
xfs_bmbt_set_startoff(ep,
PREV.br_startoff + new->br_blockcount);
@@ -1010,7 +991,7 @@
xfs_bmbt_set_blockcount(ep, temp);
xfs_bmap_trace_insert(fname, "LF", ip, idx, 1, new, NULL,
XFS_DATA_FORK);
- xfs_bmap_insert_exlist(ip, idx, 1, new, XFS_DATA_FORK);
+ xfs_iext_insert(ifp, idx, 1, new);
ip->i_df.if_lastex = idx;
ip->i_d.di_nextents++;
if (cur == NULL)
@@ -1039,8 +1020,7 @@
temp = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
STARTBLOCKVAL(PREV.br_startblock) -
(cur ? cur->bc_private.b.allocated : 0));
- base = ip->i_df.if_u1.if_extents;
- ep = &base[idx + 1];
+ ep = xfs_iext_get_ext(ifp, idx + 1);
xfs_bmbt_set_startblock(ep, NULLSTARTBLOCK((int)temp));
xfs_bmap_trace_post_update(fname, "LF", ip, idx + 1,
XFS_DATA_FORK);
@@ -1058,7 +1038,8 @@
xfs_bmap_trace_pre_update(fname, "RF|RC", ip, idx + 1,
XFS_DATA_FORK);
xfs_bmbt_set_blockcount(ep, temp);
- xfs_bmbt_set_allf(ep + 1, new->br_startoff, new->br_startblock,
+ xfs_bmbt_set_allf(xfs_iext_get_ext(ifp, idx + 1),
+ new->br_startoff, new->br_startblock,
new->br_blockcount + RIGHT.br_blockcount,
RIGHT.br_state);
xfs_bmap_trace_post_update(fname, "RF|RC", ip, idx + 1,
@@ -1098,7 +1079,7 @@
xfs_bmbt_set_blockcount(ep, temp);
xfs_bmap_trace_insert(fname, "RF", ip, idx + 1, 1,
new, NULL, XFS_DATA_FORK);
- xfs_bmap_insert_exlist(ip, idx + 1, 1, new, XFS_DATA_FORK);
+ xfs_iext_insert(ifp, idx + 1, 1, new);
ip->i_df.if_lastex = idx + 1;
ip->i_d.di_nextents++;
if (cur == NULL)
@@ -1127,8 +1108,7 @@
temp = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
STARTBLOCKVAL(PREV.br_startblock) -
(cur ? cur->bc_private.b.allocated : 0));
- base = ip->i_df.if_u1.if_extents;
- ep = &base[idx];
+ ep = xfs_iext_get_ext(ifp, idx);
xfs_bmbt_set_startblock(ep, NULLSTARTBLOCK((int)temp));
xfs_bmap_trace_post_update(fname, "RF", ip, idx, XFS_DATA_FORK);
*dnew = temp;
@@ -1149,7 +1129,7 @@
r[1].br_blockcount = temp2;
xfs_bmap_trace_insert(fname, "0", ip, idx + 1, 2, &r[0], &r[1],
XFS_DATA_FORK);
- xfs_bmap_insert_exlist(ip, idx + 1, 2, &r[0], XFS_DATA_FORK);
+ xfs_iext_insert(ifp, idx + 1, 2, &r[0]);
ip->i_df.if_lastex = idx + 1;
ip->i_d.di_nextents++;
if (cur == NULL)
@@ -1204,13 +1184,13 @@
}
}
}
- base = ip->i_df.if_u1.if_extents;
- ep = &base[idx];
+ ep = xfs_iext_get_ext(ifp, idx);
xfs_bmbt_set_startblock(ep, NULLSTARTBLOCK((int)temp));
xfs_bmap_trace_post_update(fname, "0", ip, idx, XFS_DATA_FORK);
xfs_bmap_trace_pre_update(fname, "0", ip, idx + 2,
XFS_DATA_FORK);
- xfs_bmbt_set_startblock(ep + 2, NULLSTARTBLOCK((int)temp2));
+ xfs_bmbt_set_startblock(xfs_iext_get_ext(ifp, idx + 2),
+ NULLSTARTBLOCK((int)temp2));
xfs_bmap_trace_post_update(fname, "0", ip, idx + 2,
XFS_DATA_FORK);
*dnew = temp + temp2;
@@ -1254,10 +1234,9 @@
xfs_inode_t *ip, /* incore inode pointer */
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 put in extent list */
+ xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp) /* inode logging flags */
{
- xfs_bmbt_rec_t *base; /* base of extent entry list */
xfs_btree_cur_t *cur; /* btree cursor */
xfs_bmbt_rec_t *ep; /* extent entry for idx */
int error; /* error return value */
@@ -1265,6 +1244,7 @@
static char fname[] = "xfs_bmap_add_extent_unwritten_real";
#endif
int i; /* temp state */
+ xfs_ifork_t *ifp; /* inode fork pointer */
xfs_fileoff_t new_endoff; /* end offset of new entry */
xfs_exntst_t newext; /* new extent state */
xfs_exntst_t oldext; /* old extent state */
@@ -1298,8 +1278,8 @@
*/
error = 0;
cur = *curp;
- base = ip->i_df.if_u1.if_extents;
- ep = &base[idx];
+ ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
+ ep = xfs_iext_get_ext(ifp, idx);
xfs_bmbt_get_all(ep, &PREV);
newext = new->br_state;
oldext = (newext == XFS_EXT_UNWRITTEN) ?
@@ -1320,7 +1300,7 @@
* Don't set contiguous if the combined extent would be too large.
*/
if (STATE_SET_TEST(LEFT_VALID, idx > 0)) {
- xfs_bmbt_get_all(ep - 1, &LEFT);
+ xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx - 1), &LEFT);
STATE_SET(LEFT_DELAY, ISNULLSTARTBLOCK(LEFT.br_startblock));
}
STATE_SET(LEFT_CONTIG,
@@ -1337,7 +1317,7 @@
if (STATE_SET_TEST(RIGHT_VALID,
idx <
ip->i_df.if_bytes / (uint)sizeof(xfs_bmbt_rec_t) - 1)) {
- xfs_bmbt_get_all(ep + 1, &RIGHT);
+ xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx + 1), &RIGHT);
STATE_SET(RIGHT_DELAY, ISNULLSTARTBLOCK(RIGHT.br_startblock));
}
STATE_SET(RIGHT_CONTIG,
@@ -1363,14 +1343,14 @@
*/
xfs_bmap_trace_pre_update(fname, "LF|RF|LC|RC", ip, idx - 1,
XFS_DATA_FORK);
- xfs_bmbt_set_blockcount(ep - 1,
+ xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, idx - 1),
LEFT.br_blockcount + PREV.br_blockcount +
RIGHT.br_blockcount);
xfs_bmap_trace_post_update(fname, "LF|RF|LC|RC", ip, idx - 1,
XFS_DATA_FORK);
xfs_bmap_trace_delete(fname, "LF|RF|LC|RC", ip, idx, 2,
XFS_DATA_FORK);
- xfs_bmap_delete_exlist(ip, idx, 2, XFS_DATA_FORK);
+ xfs_iext_remove(ifp, idx, 2);
ip->i_df.if_lastex = idx - 1;
ip->i_d.di_nextents -= 2;
if (cur == NULL)
@@ -1409,14 +1389,14 @@
*/
xfs_bmap_trace_pre_update(fname, "LF|RF|LC", ip, idx - 1,
XFS_DATA_FORK);
- xfs_bmbt_set_blockcount(ep - 1,
+ xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, idx - 1),
LEFT.br_blockcount + PREV.br_blockcount);
xfs_bmap_trace_post_update(fname, "LF|RF|LC", ip, idx - 1,
XFS_DATA_FORK);
ip->i_df.if_lastex = idx - 1;
xfs_bmap_trace_delete(fname, "LF|RF|LC", ip, idx, 1,
XFS_DATA_FORK);
- xfs_bmap_delete_exlist(ip, idx, 1, XFS_DATA_FORK);
+ xfs_iext_remove(ifp, idx, 1);
ip->i_d.di_nextents--;
if (cur == NULL)
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
@@ -1456,7 +1436,7 @@
ip->i_df.if_lastex = idx;
xfs_bmap_trace_delete(fname, "LF|RF|RC", ip, idx + 1, 1,
XFS_DATA_FORK);
- xfs_bmap_delete_exlist(ip, idx + 1, 1, XFS_DATA_FORK);
+ xfs_iext_remove(ifp, idx + 1, 1);
ip->i_d.di_nextents--;
if (cur == NULL)
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
@@ -1516,7 +1496,7 @@
*/
xfs_bmap_trace_pre_update(fname, "LF|LC", ip, idx - 1,
XFS_DATA_FORK);
- xfs_bmbt_set_blockcount(ep - 1,
+ xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, idx - 1),
LEFT.br_blockcount + new->br_blockcount);
xfs_bmbt_set_startoff(ep,
PREV.br_startoff + new->br_blockcount);
@@ -1571,7 +1551,7 @@
xfs_bmap_trace_post_update(fname, "LF", ip, idx, XFS_DATA_FORK);
xfs_bmap_trace_insert(fname, "LF", ip, idx, 1, new, NULL,
XFS_DATA_FORK);
- xfs_bmap_insert_exlist(ip, idx, 1, new, XFS_DATA_FORK);
+ xfs_iext_insert(ifp, idx, 1, new);
ip->i_df.if_lastex = idx;
ip->i_d.di_nextents++;
if (cur == NULL)
@@ -1609,7 +1589,8 @@
PREV.br_blockcount - new->br_blockcount);
xfs_bmap_trace_post_update(fname, "RF|RC", ip, idx,
XFS_DATA_FORK);
- xfs_bmbt_set_allf(ep + 1, new->br_startoff, new->br_startblock,
+ xfs_bmbt_set_allf(xfs_iext_get_ext(ifp, idx + 1),
+ new->br_startoff, new->br_startblock,
new->br_blockcount + RIGHT.br_blockcount, newext);
xfs_bmap_trace_post_update(fname, "RF|RC", ip, idx + 1,
XFS_DATA_FORK);
@@ -1649,7 +1630,7 @@
xfs_bmap_trace_post_update(fname, "RF", ip, idx, XFS_DATA_FORK);
xfs_bmap_trace_insert(fname, "RF", ip, idx + 1, 1,
new, NULL, XFS_DATA_FORK);
- xfs_bmap_insert_exlist(ip, idx + 1, 1, new, XFS_DATA_FORK);
+ xfs_iext_insert(ifp, idx + 1, 1, new);
ip->i_df.if_lastex = idx + 1;
ip->i_d.di_nextents++;
if (cur == NULL)
@@ -1696,7 +1677,7 @@
r[1].br_state = oldext;
xfs_bmap_trace_insert(fname, "0", ip, idx + 1, 2, &r[0], &r[1],
XFS_DATA_FORK);
- xfs_bmap_insert_exlist(ip, idx + 1, 2, &r[0], XFS_DATA_FORK);
+ xfs_iext_insert(ifp, idx + 1, 2, &r[0]);
ip->i_df.if_lastex = idx + 1;
ip->i_d.di_nextents += 2;
if (cur == NULL)
@@ -1770,15 +1751,15 @@
xfs_inode_t *ip, /* incore inode pointer */
xfs_extnum_t idx, /* extent number to update/insert */
xfs_btree_cur_t *cur, /* if null, not a btree */
- xfs_bmbt_irec_t *new, /* new data to put in extent list */
+ xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp, /* inode logging flags */
int rsvd) /* OK to allocate reserved blocks */
{
- xfs_bmbt_rec_t *base; /* base of extent entry list */
- xfs_bmbt_rec_t *ep; /* extent list entry for idx */
+ xfs_bmbt_rec_t *ep; /* extent record for idx */
#ifdef XFS_BMAP_TRACE
static char fname[] = "xfs_bmap_add_extent_hole_delay";
#endif
+ xfs_ifork_t *ifp; /* inode fork pointer */
xfs_bmbt_irec_t left; /* left neighbor extent entry */
xfs_filblks_t newlen=0; /* new indirect size */
xfs_filblks_t oldlen=0; /* old indirect size */
@@ -1799,15 +1780,15 @@
((state &= ~MASK(b)), 0))
#define SWITCH_STATE (state & MASK2(LEFT_CONTIG, RIGHT_CONTIG))
- base = ip->i_df.if_u1.if_extents;
- ep = &base[idx];
+ ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
+ ep = xfs_iext_get_ext(ifp, idx);
state = 0;
ASSERT(ISNULLSTARTBLOCK(new->br_startblock));
/*
* Check and set flags if this segment has a left neighbor
*/
if (STATE_SET_TEST(LEFT_VALID, idx > 0)) {
- xfs_bmbt_get_all(ep - 1, &left);
+ xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx - 1), &left);
STATE_SET(LEFT_DELAY, ISNULLSTARTBLOCK(left.br_startblock));
}
/*
@@ -1844,23 +1825,24 @@
/*
* New allocation is contiguous with delayed allocations
* on the left and on the right.
- * Merge all three into a single extent list entry.
+ * Merge all three into a single extent record.
*/
temp = left.br_blockcount + new->br_blockcount +
right.br_blockcount;
xfs_bmap_trace_pre_update(fname, "LC|RC", ip, idx - 1,
XFS_DATA_FORK);
- xfs_bmbt_set_blockcount(ep - 1, temp);
+ xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, idx - 1), temp);
oldlen = STARTBLOCKVAL(left.br_startblock) +
STARTBLOCKVAL(new->br_startblock) +
STARTBLOCKVAL(right.br_startblock);
newlen = xfs_bmap_worst_indlen(ip, temp);
- xfs_bmbt_set_startblock(ep - 1, NULLSTARTBLOCK((int)newlen));
+ xfs_bmbt_set_startblock(xfs_iext_get_ext(ifp, idx - 1),
+ NULLSTARTBLOCK((int)newlen));
xfs_bmap_trace_post_update(fname, "LC|RC", ip, idx - 1,
XFS_DATA_FORK);
xfs_bmap_trace_delete(fname, "LC|RC", ip, idx, 1,
XFS_DATA_FORK);
- xfs_bmap_delete_exlist(ip, idx, 1, XFS_DATA_FORK);
+ xfs_iext_remove(ifp, idx, 1);
ip->i_df.if_lastex = idx - 1;
break;
@@ -1873,11 +1855,12 @@
temp = left.br_blockcount + new->br_blockcount;
xfs_bmap_trace_pre_update(fname, "LC", ip, idx - 1,
XFS_DATA_FORK);
- xfs_bmbt_set_blockcount(ep - 1, temp);
+ xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, idx - 1), temp);
oldlen = STARTBLOCKVAL(left.br_startblock) +
STARTBLOCKVAL(new->br_startblock);
newlen = xfs_bmap_worst_indlen(ip, temp);
- xfs_bmbt_set_startblock(ep - 1, NULLSTARTBLOCK((int)newlen));
+ xfs_bmbt_set_startblock(xfs_iext_get_ext(ifp, idx - 1),
+ NULLSTARTBLOCK((int)newlen));
xfs_bmap_trace_post_update(fname, "LC", ip, idx - 1,
XFS_DATA_FORK);
ip->i_df.if_lastex = idx - 1;
@@ -1909,7 +1892,7 @@
oldlen = newlen = 0;
xfs_bmap_trace_insert(fname, "0", ip, idx, 1, new, NULL,
XFS_DATA_FORK);
- xfs_bmap_insert_exlist(ip, idx, 1, new, XFS_DATA_FORK);
+ xfs_iext_insert(ifp, idx, 1, new);
ip->i_df.if_lastex = idx;
break;
}
@@ -1940,7 +1923,7 @@
xfs_inode_t *ip, /* incore inode pointer */
xfs_extnum_t idx, /* extent number to update/insert */
xfs_btree_cur_t *cur, /* if null, not a btree */
- xfs_bmbt_irec_t *new, /* new data to put in extent list */
+ xfs_bmbt_irec_t *new, /* new data to add to file extents */
int *logflagsp, /* inode logging flags */
int whichfork) /* data or attr fork */
{
@@ -1970,13 +1953,13 @@
ifp = XFS_IFORK_PTR(ip, whichfork);
ASSERT(idx <= ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t));
- ep = &ifp->if_u1.if_extents[idx];
+ ep = xfs_iext_get_ext(ifp, idx);
state = 0;
/*
* Check and set flags if this segment has a left neighbor.
*/
if (STATE_SET_TEST(LEFT_VALID, idx > 0)) {
- xfs_bmbt_get_all(ep - 1, &left);
+ xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx - 1), &left);
STATE_SET(LEFT_DELAY, ISNULLSTARTBLOCK(left.br_startblock));
}
/*
@@ -2019,18 +2002,18 @@
/*
* New allocation is contiguous with real allocations on the
* left and on the right.
- * Merge all three into a single extent list entry.
+ * Merge all three into a single extent record.
*/
xfs_bmap_trace_pre_update(fname, "LC|RC", ip, idx - 1,
whichfork);
- xfs_bmbt_set_blockcount(ep - 1,
+ xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, idx - 1),
left.br_blockcount + new->br_blockcount +
right.br_blockcount);
xfs_bmap_trace_post_update(fname, "LC|RC", ip, idx - 1,
whichfork);
xfs_bmap_trace_delete(fname, "LC|RC", ip,
idx, 1, whichfork);
- xfs_bmap_delete_exlist(ip, idx, 1, whichfork);
+ xfs_iext_remove(ifp, idx, 1);
ifp->if_lastex = idx - 1;
XFS_IFORK_NEXT_SET(ip, whichfork,
XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
@@ -2062,7 +2045,7 @@
* Merge the new allocation with the left neighbor.
*/
xfs_bmap_trace_pre_update(fname, "LC", ip, idx - 1, whichfork);
- xfs_bmbt_set_blockcount(ep - 1,
+ xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, idx - 1),
left.br_blockcount + new->br_blockcount);
xfs_bmap_trace_post_update(fname, "LC", ip, idx - 1, whichfork);
ifp->if_lastex = idx - 1;
@@ -2116,7 +2099,7 @@
*/
xfs_bmap_trace_insert(fname, "0", ip, idx, 1, new, NULL,
whichfork);
- xfs_bmap_insert_exlist(ip, idx, 1, new, whichfork);
+ xfs_iext_insert(ifp, idx, 1, new);
ifp->if_lastex = idx;
XFS_IFORK_NEXT_SET(ip, whichfork,
XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
@@ -2811,7 +2794,7 @@
/*
* Transform a btree format file with only one leaf node, where the
* extents list will fit in the inode, into an extents format file.
- * Since the extent list is already in-core, all we have to do is
+ * Since the file extents are already in-core, all we have to do is
* give up the space for the btree root and pitch the leaf block.
*/
STATIC int /* error */
@@ -2868,7 +2851,7 @@
}
/*
- * Called by xfs_bmapi to update extent list structure and the btree
+ * Called by xfs_bmapi to update file extent records and the btree
* after removing space (or undoing a delayed allocation).
*/
STATIC int /* error */
@@ -2878,7 +2861,7 @@
xfs_extnum_t idx, /* extent number to update/delete */
xfs_bmap_free_t *flist, /* list of extents to be freed */
xfs_btree_cur_t *cur, /* if null, not a btree */
- xfs_bmbt_irec_t *del, /* data to remove from extent list */
+ xfs_bmbt_irec_t *del, /* data to remove from extents */
int *logflagsp, /* inode logging flags */
int whichfork, /* data or attr fork */
int rsvd) /* OK to allocate reserved blocks */
@@ -2903,7 +2886,6 @@
xfs_filblks_t nblks; /* quota/sb block count */
xfs_bmbt_irec_t new; /* new record to be inserted */
/* REFERENCED */
- xfs_extnum_t nextents; /* number of extents in list */
uint qfield; /* quota field to update */
xfs_filblks_t temp; /* for indirect length calculations */
xfs_filblks_t temp2; /* for indirect length calculations */
@@ -2911,10 +2893,10 @@
XFS_STATS_INC(xs_del_exlist);
mp = ip->i_mount;
ifp = XFS_IFORK_PTR(ip, whichfork);
- nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
- ASSERT(idx >= 0 && idx < nextents);
+ ASSERT((idx >= 0) && (idx < ifp->if_bytes /
+ (uint)sizeof(xfs_bmbt_rec_t)));
ASSERT(del->br_blockcount > 0);
- ep = &ifp->if_u1.if_extents[idx];
+ ep = xfs_iext_get_ext(ifp, idx);
xfs_bmbt_get_all(ep, &got);
ASSERT(got.br_startoff <= del->br_startoff);
del_endoff = del->br_startoff + del->br_blockcount;
@@ -2990,7 +2972,7 @@
* Matches the whole extent. Delete the entry.
*/
xfs_bmap_trace_delete(fname, "3", ip, idx, 1, whichfork);
- xfs_bmap_delete_exlist(ip, idx, 1, whichfork);
+ xfs_iext_remove(ifp, idx, 1);
ifp->if_lastex = idx;
if (delay)
break;
@@ -3160,7 +3142,7 @@
xfs_bmap_trace_post_update(fname, "0", ip, idx, whichfork);
xfs_bmap_trace_insert(fname, "0", ip, idx + 1, 1, &new, NULL,
whichfork);
- xfs_bmap_insert_exlist(ip, idx + 1, 1, &new, whichfork);
+ xfs_iext_insert(ifp, idx + 1, 1, &new);
ifp->if_lastex = idx + 1;
break;
}
@@ -3213,31 +3195,6 @@
}
/*
- * Remove count entries from the extents array for inode "ip", starting
- * at index "idx". Copies the remaining items down over the deleted ones,
- * and gives back the excess memory.
- */
-STATIC void
-xfs_bmap_delete_exlist(
- xfs_inode_t *ip, /* incore inode pointer */
- xfs_extnum_t idx, /* starting delete index */
- xfs_extnum_t count, /* count of items to delete */
- int whichfork) /* data or attr fork */
-{
- xfs_bmbt_rec_t *base; /* base of extent list */
- xfs_ifork_t *ifp; /* inode fork pointer */
- xfs_extnum_t nextents; /* number of extents in list after */
-
- ifp = XFS_IFORK_PTR(ip, whichfork);
- ASSERT(ifp->if_flags & XFS_IFEXTENTS);
- base = ifp->if_u1.if_extents;
- nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t) - count;
- memmove(&base[idx], &base[idx + count],
- (nextents - idx) * sizeof(*base));
- xfs_iext_realloc(ip, -count, whichfork);
-}
-
-/*
* Convert an extents-format file into a btree-format file.
* The new file will have a root block (in the inode) and a single child block.
*/
@@ -3258,13 +3215,13 @@
xfs_bmbt_rec_t *arp; /* child record pointer */
xfs_bmbt_block_t *block; /* btree root block */
xfs_btree_cur_t *cur; /* bmap btree cursor */
- xfs_bmbt_rec_t *ep; /* extent list pointer */
+ xfs_bmbt_rec_t *ep; /* extent record pointer */
int error; /* error return value */
- xfs_extnum_t i, cnt; /* extent list index */
+ xfs_extnum_t i, cnt; /* extent record index */
xfs_ifork_t *ifp; /* inode fork pointer */
xfs_bmbt_key_t *kp; /* root block key pointer */
xfs_mount_t *mp; /* mount structure */
- xfs_extnum_t nextents; /* extent list size */
+ xfs_extnum_t nextents; /* number of file extents */
xfs_bmbt_ptr_t *pp; /* root block address pointer */
ifp = XFS_IFORK_PTR(ip, whichfork);
@@ -3343,7 +3300,8 @@
ablock->bb_rightsib = cpu_to_be64(NULLDFSBNO);
arp = XFS_BMAP_REC_IADDR(ablock, 1, cur);
nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
- for (ep = ifp->if_u1.if_extents, cnt = i = 0; i < nextents; i++, ep++) {
+ for (cnt = i = 0; i < nextents; i++) {
+ ep = xfs_iext_get_ext(ifp, i);
if (!ISNULLSTARTBLOCK(xfs_bmbt_get_startblock(ep))) {
arp->l0 = INT_GET(ep->l0, ARCH_CONVERT);
arp->l1 = INT_GET(ep->l1, ARCH_CONVERT);
@@ -3373,34 +3331,6 @@
}
/*
- * Insert new item(s) in the extent list for inode "ip".
- * Count new items are inserted at offset idx.
- */
-STATIC void
-xfs_bmap_insert_exlist(
- xfs_inode_t *ip, /* incore inode pointer */
- xfs_extnum_t idx, /* starting index of new items */
- xfs_extnum_t count, /* number of inserted items */
- xfs_bmbt_irec_t *new, /* items to insert */
- int whichfork) /* data or attr fork */
-{
- xfs_bmbt_rec_t *base; /* extent list base */
- xfs_ifork_t *ifp; /* inode fork pointer */
- xfs_extnum_t nextents; /* extent list size */
- xfs_extnum_t to; /* extent list index */
-
- ifp = XFS_IFORK_PTR(ip, whichfork);
- ASSERT(ifp->if_flags & XFS_IFEXTENTS);
- xfs_iext_realloc(ip, count, whichfork);
- base = ifp->if_u1.if_extents;
- nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
- memmove(&base[idx + count], &base[idx],
- (nextents - (idx + count)) * sizeof(*base));
- for (to = idx; to < idx + count; to++, new++)
- xfs_bmbt_set_all(&base[to], new);
-}
-
-/*
* Helper routine to reset inode di_forkoff field when switching
* attribute fork from local to extent format - we reset it where
* possible to make space available for inline data fork extents.
@@ -3457,8 +3387,8 @@
error = 0;
if (ifp->if_bytes) {
xfs_alloc_arg_t args; /* allocation arguments */
- xfs_buf_t *bp; /* buffer for extent list block */
- xfs_bmbt_rec_t *ep; /* extent list pointer */
+ xfs_buf_t *bp; /* buffer for extent block */
+ xfs_bmbt_rec_t *ep; /* extent record pointer */
args.tp = tp;
args.mp = ip->i_mount;
@@ -3492,8 +3422,8 @@
xfs_trans_log_buf(tp, bp, 0, ifp->if_bytes - 1);
xfs_bmap_forkoff_reset(args.mp, ip, whichfork);
xfs_idata_realloc(ip, -ifp->if_bytes, whichfork);
- xfs_iext_realloc(ip, 1, whichfork);
- ep = ifp->if_u1.if_extents;
+ xfs_iext_add(ifp, 0, 1);
+ ep = xfs_iext_get_ext(ifp, 0);
xfs_bmbt_set_allf(ep, 0, args.fsbno, 1, XFS_EXT_NORM);
xfs_bmap_trace_post_update(fname, "new", ip, 0, whichfork);
XFS_IFORK_NEXT_SET(ip, whichfork, 1);
@@ -3518,7 +3448,7 @@
xfs_bmap_do_search_extents(
xfs_bmbt_rec_t *base, /* base of extent list */
xfs_extnum_t lastx, /* last extent index used */
- xfs_extnum_t nextents, /* extent list size */
+ xfs_extnum_t nextents, /* number of file extents */
xfs_fileoff_t bno, /* block number searched for */
int *eofp, /* out: end of file found */
xfs_extnum_t *lastxp, /* out: last extent index */
@@ -3569,9 +3499,9 @@
got.br_blockcount = xfs_bmbt_get_blockcount(ep);
*eofp = 0;
} else {
- /* binary search the extents array */
low = 0;
high = nextents - 1;
+ /* binary search the extents array */
while (low <= high) {
XFS_STATS_INC(xs_cmp_exlist);
lastx = (low + high) >> 1;
@@ -3641,8 +3571,8 @@
xfs_ifork_t *ifp; /* inode fork pointer */
xfs_bmbt_rec_t *base; /* base of extent list */
xfs_extnum_t lastx; /* last extent index used */
- xfs_extnum_t nextents; /* extent list size */
- xfs_bmbt_rec_t *ep; /* extent list entry pointer */
+ xfs_extnum_t nextents; /* number of file extents */
+ xfs_bmbt_rec_t *ep; /* extent record pointer */
int rt; /* realtime flag */
XFS_STATS_INC(xs_look_exlist);
@@ -3732,7 +3662,7 @@
}
/*
- * Add bmap trace entry prior to a call to xfs_bmap_delete_exlist.
+ * Add bmap trace entry prior to a call to xfs_iext_remove.
*/
STATIC void
xfs_bmap_trace_delete(
@@ -3747,13 +3677,13 @@
ifp = XFS_IFORK_PTR(ip, whichfork);
xfs_bmap_trace_addentry(XFS_BMAP_KTRACE_DELETE, fname, desc, ip, idx,
- cnt, &ifp->if_u1.if_extents[idx],
- cnt == 2 ? &ifp->if_u1.if_extents[idx + 1] : NULL,
+ cnt, xfs_iext_get_ext(ifp, idx),
+ cnt == 2 ? xfs_iext_get_ext(ifp, idx + 1) : NULL,
whichfork);
}
/*
- * Add bmap trace entry prior to a call to xfs_bmap_insert_exlist, or
+ * Add bmap trace entry prior to a call to xfs_iext_insert, or
* reading in the extents list from the disk (in the btree).
*/
STATIC void
@@ -3783,7 +3713,7 @@
}
/*
- * Add bmap trace entry after updating an extent list entry in place.
+ * Add bmap trace entry after updating an extent record in place.
*/
STATIC void
xfs_bmap_trace_post_update(
@@ -3797,11 +3727,11 @@
ifp = XFS_IFORK_PTR(ip, whichfork);
xfs_bmap_trace_addentry(XFS_BMAP_KTRACE_POST_UP, fname, desc, ip, idx,
- 1, &ifp->if_u1.if_extents[idx], NULL, whichfork);
+ 1, xfs_iext_get_ext(ifp, idx), NULL, whichfork);
}
/*
- * Add bmap trace entry prior to updating an extent list entry in place.
+ * Add bmap trace entry prior to updating an extent record in place.
*/
STATIC void
xfs_bmap_trace_pre_update(
@@ -3815,7 +3745,7 @@
ifp = XFS_IFORK_PTR(ip, whichfork);
xfs_bmap_trace_addentry(XFS_BMAP_KTRACE_PRE_UP, fname, desc, ip, idx, 1,
- &ifp->if_u1.if_extents[idx], NULL, whichfork);
+ xfs_iext_get_ext(ifp, idx), NULL, whichfork);
}
#endif /* XFS_BMAP_TRACE */
@@ -3892,7 +3822,7 @@
int rsvd) /* xact may use reserved blks */
{
xfs_fsblock_t firstblock; /* 1st block/ag allocated */
- xfs_bmap_free_t flist; /* freed extent list */
+ xfs_bmap_free_t flist; /* freed extent records */
xfs_mount_t *mp; /* mount structure */
xfs_trans_t *tp; /* transaction pointer */
unsigned long s; /* spinlock spl value */
@@ -4146,7 +4076,7 @@
xfs_efd_log_item_t *efd; /* extent free data */
xfs_efi_log_item_t *efi; /* extent free intention */
int error; /* error return value */
- xfs_bmap_free_item_t *free; /* free extent list item */
+ xfs_bmap_free_item_t *free; /* free extent item */
unsigned int logres; /* new log reservation */
unsigned int logcount; /* new log count */
xfs_mount_t *mp; /* filesystem mount structure */
@@ -4242,9 +4172,9 @@
xfs_fileoff_t *first_unused, /* unused block */
int whichfork) /* data or attr fork */
{
- xfs_bmbt_rec_t *base; /* base of extent array */
xfs_bmbt_rec_t *ep; /* pointer to an extent entry */
int error; /* error return value */
+ int idx; /* extent record index */
xfs_ifork_t *ifp; /* inode fork pointer */
xfs_fileoff_t lastaddr; /* last block number seen */
xfs_fileoff_t lowest; /* lowest useful block */
@@ -4265,10 +4195,8 @@
return error;
lowest = *first_unused;
nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
- base = &ifp->if_u1.if_extents[0];
- for (lastaddr = 0, max = lowest, ep = base;
- ep < &base[nextents];
- ep++) {
+ for (idx = 0, lastaddr = 0, max = lowest; idx < nextents; idx++) {
+ ep = xfs_iext_get_ext(ifp, idx);
off = xfs_bmbt_get_startoff(ep);
/*
* See if the hole before this extent will work.
@@ -4287,8 +4215,8 @@
/*
* Returns the file-relative block number of the last block + 1 before
* last_block (input value) in the file.
- * This is not based on i_size, it is based on the extent list.
- * Returns 0 for local files, as they do not have an extent list.
+ * This is not based on i_size, it is based on the extent records.
+ * Returns 0 for local files, as they do not have extent records.
*/
int /* error */
xfs_bmap_last_before(
@@ -4335,8 +4263,8 @@
/*
* Returns the file-relative block number of the first block past eof in
- * the file. This is not based on i_size, it is based on the extent list.
- * Returns 0 for local files, as they do not have an extent list.
+ * the file. This is not based on i_size, it is based on the extent records.
+ * Returns 0 for local files, as they do not have extent records.
*/
int /* error */
xfs_bmap_last_offset(
@@ -4345,7 +4273,6 @@
xfs_fileoff_t *last_block, /* last block */
int whichfork) /* data or attr fork */
{
- xfs_bmbt_rec_t *base; /* base of extent array */
xfs_bmbt_rec_t *ep; /* pointer to last extent */
int error; /* error return value */
xfs_ifork_t *ifp; /* inode fork pointer */
@@ -4368,9 +4295,7 @@
*last_block = 0;
return 0;
}
- base = &ifp->if_u1.if_extents[0];
- ASSERT(base != NULL);
- ep = &base[nextents - 1];
+ ep = xfs_iext_get_ext(ifp, nextents - 1);
*last_block = xfs_bmbt_get_startoff(ep) + xfs_bmbt_get_blockcount(ep);
return 0;
}
@@ -4400,7 +4325,7 @@
return 0;
ifp = XFS_IFORK_PTR(ip, whichfork);
ASSERT(ifp->if_flags & XFS_IFEXTENTS);
- ep = ifp->if_u1.if_extents;
+ ep = xfs_iext_get_ext(ifp, 0);
xfs_bmbt_get_all(ep, &s);
rval = s.br_startoff == 0 && s.br_blockcount == 1;
if (rval && whichfork == XFS_DATA_FORK)
@@ -4435,7 +4360,6 @@
xfs_bmbt_ptr_t *pp; /* pointer to block address */
/* REFERENCED */
xfs_extnum_t room; /* number of entries there's room for */
- xfs_bmbt_rec_t *trp; /* target record pointer */
bno = NULLFSBLOCK;
mp = ip->i_mount;
@@ -4478,16 +4402,16 @@
/*
* Here with bp and block set to the leftmost leaf node in the tree.
*/
- room = ifp->if_bytes / (uint)sizeof(*trp);
- trp = ifp->if_u1.if_extents;
+ room = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
i = 0;
/*
- * Loop over all leaf nodes. Copy information to the extent list.
+ * Loop over all leaf nodes. Copy information to the extent records.
*/
for (;;) {
- xfs_bmbt_rec_t *frp, *temp;
+ xfs_bmbt_rec_t *frp, *trp;
xfs_fsblock_t nextbno;
xfs_extnum_t num_recs;
+ xfs_extnum_t start;
num_recs = be16_to_cpu(block->bb_numrecs);
@@ -4511,12 +4435,13 @@
if (nextbno != NULLFSBLOCK)
xfs_btree_reada_bufl(mp, nextbno, 1);
/*
- * Copy records into the extent list.
+ * Copy records into the extent records.
*/
frp = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_bmbt,
block, 1, mp->m_bmap_dmxr[0]);
- temp = trp;
- for (j = 0; j < num_recs; j++, frp++, trp++) {
+ start = i;
+ for (j = 0; j < num_recs; j++, i++, frp++) {
+ trp = xfs_iext_get_ext(ifp, i);
trp->l0 = INT_GET(frp->l0, ARCH_CONVERT);
trp->l1 = INT_GET(frp->l1, ARCH_CONVERT);
}
@@ -4526,14 +4451,14 @@
* any "older" data bmap btree records for a
* set bit in the "extent flag" position.
*/
- if (unlikely(xfs_check_nostate_extents(temp, num_recs))) {
+ if (unlikely(xfs_check_nostate_extents(ifp,
+ start, num_recs))) {
XFS_ERROR_REPORT("xfs_bmap_read_extents(2)",
XFS_ERRLEVEL_LOW,
ip->i_mount);
goto error0;
}
}
- i += num_recs;
xfs_trans_brelse(tp, bp);
bno = nextbno;
/*
@@ -4546,7 +4471,7 @@
return error;
block = XFS_BUF_TO_BMBT_BLOCK(bp);
}
- ASSERT(i == ifp->if_bytes / (uint)sizeof(*trp));
+ ASSERT(i == (ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t)));
ASSERT(i == XFS_IFORK_NEXTENTS(ip, whichfork));
xfs_bmap_trace_exlist(fname, ip, i, whichfork);
return 0;
@@ -4557,7 +4482,7 @@
#ifdef XFS_BMAP_TRACE
/*
- * Add bmap trace insert entries for all the contents of the extent list.
+ * Add bmap trace insert entries for all the contents of the extent records.
*/
void
xfs_bmap_trace_exlist(
@@ -4566,16 +4491,15 @@
xfs_extnum_t cnt, /* count of entries in the list */
int whichfork) /* data or attr fork */
{
- xfs_bmbt_rec_t *base; /* base of extent list */
- xfs_bmbt_rec_t *ep; /* current entry in extent list */
- xfs_extnum_t idx; /* extent list entry number */
+ xfs_bmbt_rec_t *ep; /* current extent record */
+ xfs_extnum_t idx; /* extent record index */
xfs_ifork_t *ifp; /* inode fork pointer */
- xfs_bmbt_irec_t s; /* extent list record */
+ xfs_bmbt_irec_t s; /* file extent record */
ifp = XFS_IFORK_PTR(ip, whichfork);
- ASSERT(cnt == ifp->if_bytes / (uint)sizeof(*base));
- base = ifp->if_u1.if_extents;
- for (idx = 0, ep = base; idx < cnt; idx++, ep++) {
+ ASSERT(cnt == (ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t)));
+ for (idx = 0; idx < cnt; idx++) {
+ ep = xfs_iext_get_ext(ifp, idx);
xfs_bmbt_get_all(ep, &s);
xfs_bmap_trace_insert(fname, "exlist", ip, idx, 1, &s, NULL,
whichfork);
@@ -4661,14 +4585,14 @@
xfs_bmalloca_t bma; /* args for xfs_bmap_alloc */
xfs_btree_cur_t *cur; /* bmap btree cursor */
xfs_fileoff_t end; /* end of mapped file region */
- int eof; /* we've hit the end of extent list */
+ int eof; /* we've hit the end of extents */
char contig; /* allocation must be one extent */
char delay; /* this request is for delayed alloc */
char exact; /* don't do all of wasdelayed extent */
char convert; /* unwritten extent I/O completion */
- xfs_bmbt_rec_t *ep; /* extent list entry pointer */
+ xfs_bmbt_rec_t *ep; /* extent record pointer */
int error; /* error return */
- xfs_bmbt_irec_t got; /* current extent list record */
+ xfs_bmbt_irec_t got; /* current file extent record */
xfs_ifork_t *ifp; /* inode fork pointer */
xfs_extlen_t indlen; /* indirect blocks length */
xfs_extnum_t lastx; /* last useful extent number */
@@ -4680,7 +4604,7 @@
int nallocs; /* number of extents alloc\'d */
xfs_extnum_t nextents; /* number of extents in file */
xfs_fileoff_t obno; /* old block number (offset) */
- xfs_bmbt_irec_t prev; /* previous extent list record */
+ xfs_bmbt_irec_t prev; /* previous file extent record */
int tmp_logflags; /* temp flags holder */
int whichfork; /* data or attr fork */
char inhole; /* current location is hole in file */
@@ -4805,7 +4729,7 @@
alen = (xfs_extlen_t)got.br_blockcount;
aoff = got.br_startoff;
if (lastx != NULLEXTNUM && lastx) {
- ep = &ifp->if_u1.if_extents[lastx - 1];
+ ep = xfs_iext_get_ext(ifp, lastx - 1);
xfs_bmbt_get_all(ep, &prev);
}
} else if (wasdelay) {
@@ -5016,7 +4940,7 @@
if (error)
goto error0;
lastx = ifp->if_lastex;
- ep = &ifp->if_u1.if_extents[lastx];
+ ep = xfs_iext_get_ext(ifp, lastx);
nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
xfs_bmbt_get_all(ep, &got);
ASSERT(got.br_startoff <= aoff);
@@ -5112,7 +5036,7 @@
if (error)
goto error0;
lastx = ifp->if_lastex;
- ep = &ifp->if_u1.if_extents[lastx];
+ ep = xfs_iext_get_ext(ifp, lastx);
nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
xfs_bmbt_get_all(ep, &got);
/*
@@ -5168,8 +5092,7 @@
/*
* Else go on to the next record.
*/
- ep++;
- lastx++;
+ ep = xfs_iext_get_ext(ifp, ++lastx);
if (lastx >= nextents) {
eof = 1;
prev = got;
@@ -5199,7 +5122,7 @@
error0:
/*
* Log everything. Do this after conversion, there's no point in
- * logging the extent list if we've converted to btree format.
+ * logging the extent records if we've converted to btree format.
*/
if ((logflags & XFS_ILOG_FEXT(whichfork)) &&
XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS)
@@ -5252,12 +5175,12 @@
xfs_fsblock_t *fsb, /* output: mapped block */
xfs_fileoff_t bno) /* starting file offs. mapped */
{
- int eof; /* we've hit the end of extent list */
+ int eof; /* we've hit the end of extents */
int error; /* error return */
- xfs_bmbt_irec_t got; /* current extent list record */
+ xfs_bmbt_irec_t got; /* current file extent record */
xfs_ifork_t *ifp; /* inode fork pointer */
xfs_extnum_t lastx; /* last useful extent number */
- xfs_bmbt_irec_t prev; /* previous extent list record */
+ xfs_bmbt_irec_t prev; /* previous file extent record */
ifp = XFS_IFORK_PTR(ip, whichfork);
if (unlikely(
@@ -5312,18 +5235,18 @@
xfs_btree_cur_t *cur; /* bmap btree cursor */
xfs_bmbt_irec_t del; /* extent being deleted */
int eof; /* is deleting at eof */
- xfs_bmbt_rec_t *ep; /* extent list entry pointer */
+ xfs_bmbt_rec_t *ep; /* extent record pointer */
int error; /* error return value */
xfs_extnum_t extno; /* extent number in list */
- xfs_bmbt_irec_t got; /* current extent list entry */
+ xfs_bmbt_irec_t got; /* current extent record */
xfs_ifork_t *ifp; /* inode fork pointer */
int isrt; /* freeing in rt area */
xfs_extnum_t lastx; /* last extent index used */
int logflags; /* transaction logging flags */
xfs_extlen_t mod; /* rt extent offset */
xfs_mount_t *mp; /* mount structure */
- xfs_extnum_t nextents; /* size of extent list */
- xfs_bmbt_irec_t prev; /* previous extent list entry */
+ xfs_extnum_t nextents; /* number of file extents */
+ xfs_bmbt_irec_t prev; /* previous extent record */
xfs_fileoff_t start; /* first file offset deleted */
int tmp_logflags; /* partial logging flags */
int wasdel; /* was a delayed alloc extent */
@@ -5369,7 +5292,7 @@
* file, back up to the last block if so...
*/
if (eof) {
- ep = &ifp->if_u1.if_extents[--lastx];
+ ep = xfs_iext_get_ext(ifp, --lastx);
xfs_bmbt_get_all(ep, &got);
bno = got.br_startoff + got.br_blockcount - 1;
}
@@ -5393,7 +5316,7 @@
if (got.br_startoff > bno) {
if (--lastx < 0)
break;
- ep--;
+ ep = xfs_iext_get_ext(ifp, lastx);
xfs_bmbt_get_all(ep, &got);
}
/*
@@ -5440,7 +5363,8 @@
del.br_blockcount : mod;
if (bno < got.br_startoff) {
if (--lastx >= 0)
- xfs_bmbt_get_all(--ep, &got);
+ xfs_bmbt_get_all(xfs_iext_get_ext(
+ ifp, lastx), &got);
}
continue;
}
@@ -5500,7 +5424,8 @@
* try again.
*/
ASSERT(lastx > 0);
- xfs_bmbt_get_all(ep - 1, &prev);
+ xfs_bmbt_get_all(xfs_iext_get_ext(ifp,
+ lastx - 1), &prev);
ASSERT(prev.br_state == XFS_EXT_NORM);
ASSERT(!ISNULLSTARTBLOCK(prev.br_startblock));
ASSERT(del.br_startblock ==
@@ -5587,12 +5512,12 @@
* If not done go on to the next (previous) record.
* Reset ep in case the extents array was re-alloced.
*/
- ep = &ifp->if_u1.if_extents[lastx];
+ ep = xfs_iext_get_ext(ifp, lastx);
if (bno != (xfs_fileoff_t)-1 && bno >= start) {
if (lastx >= XFS_IFORK_NEXTENTS(ip, whichfork) ||
xfs_bmbt_get_startoff(ep) > bno) {
- lastx--;
- ep--;
+ if (--lastx >= 0)
+ ep = xfs_iext_get_ext(ifp, lastx);
}
if (lastx >= 0)
xfs_bmbt_get_all(ep, &got);
@@ -5636,7 +5561,7 @@
error0:
/*
* Log everything. Do this after conversion, there's no point in
- * logging the extent list if we've converted to btree format.
+ * logging the extent records if we've converted to btree format.
*/
if ((logflags & XFS_ILOG_FEXT(whichfork)) &&
XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS)
@@ -5892,9 +5817,9 @@
{
int error; /* error return value */
xfs_ifork_t *ifp; /* inode fork pointer */
- xfs_bmbt_rec_t *lastrec; /* extent list entry pointer */
- xfs_extnum_t nextents; /* size of extent list */
- xfs_bmbt_irec_t s; /* expanded extent list entry */
+ xfs_bmbt_rec_t *lastrec; /* extent record pointer */
+ xfs_extnum_t nextents; /* number of file extents */
+ xfs_bmbt_irec_t s; /* expanded extent record */
ASSERT(whichfork == XFS_DATA_FORK);
ifp = XFS_IFORK_PTR(ip, whichfork);
@@ -5909,7 +5834,7 @@
/*
* Go to the last extent
*/
- lastrec = &ifp->if_u1.if_extents[nextents - 1];
+ lastrec = xfs_iext_get_ext(ifp, nextents - 1);
xfs_bmbt_get_all(lastrec, &s);
/*
* Check we are allocating in the last extent (for delayed allocations)
@@ -5936,8 +5861,8 @@
xfs_fsblock_t blockcount; /* extent block count */
int error; /* error return value */
xfs_ifork_t *ifp; /* inode fork pointer */
- xfs_bmbt_rec_t *lastrec; /* extent list entry pointer */
- xfs_extnum_t nextents; /* size of extent list */
+ xfs_bmbt_rec_t *lastrec; /* extent record pointer */
+ xfs_extnum_t nextents; /* number of file extents */
xfs_fileoff_t startoff; /* extent starting file offset */
ASSERT(whichfork == XFS_DATA_FORK);
@@ -5953,7 +5878,7 @@
/*
* Go to the last extent
*/
- lastrec = &ifp->if_u1.if_extents[nextents - 1];
+ lastrec = xfs_iext_get_ext(ifp, nextents - 1);
startoff = xfs_bmbt_get_startoff(lastrec);
blockcount = xfs_bmbt_get_blockcount(lastrec);
*eof = endoff >= startoff + blockcount;
@@ -5969,18 +5894,21 @@
xfs_inode_t *ip, /* incore inode pointer */
int whichfork) /* data or attr fork */
{
- xfs_bmbt_rec_t *base; /* base of extents list */
xfs_bmbt_rec_t *ep; /* current extent entry */
+ xfs_extnum_t idx; /* extent record index */
xfs_ifork_t *ifp; /* inode fork pointer */
xfs_extnum_t nextents; /* number of extents in list */
+ xfs_bmbt_rec_t *nextp; /* next extent entry */
ifp = XFS_IFORK_PTR(ip, whichfork);
ASSERT(ifp->if_flags & XFS_IFEXTENTS);
- base = ifp->if_u1.if_extents;
nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
- for (ep = base; ep < &base[nextents - 1]; ep++) {
+ ep = xfs_iext_get_ext(ifp, 0);
+ for (idx = 0; idx < nextents - 1; idx++) {
+ nextp = xfs_iext_get_ext(ifp, idx + 1);
xfs_btree_check_rec(XFS_BTNUM_BMAP, (void *)ep,
- (void *)(ep + 1));
+ (void *)(nextp));
+ ep = nextp;
}
}
@@ -6119,12 +6047,14 @@
xfs_fsblock_t bno; /* block # of "block" */
xfs_buf_t *bp; /* buffer for "block" */
int error; /* error return value */
- xfs_extnum_t i=0; /* index into the extents list */
+ xfs_extnum_t i=0, j; /* index into the extents list */
xfs_ifork_t *ifp; /* fork structure */
int level; /* btree level, for checking */
xfs_mount_t *mp; /* file system mount structure */
xfs_bmbt_ptr_t *pp; /* pointer to block address */
- xfs_bmbt_rec_t *ep, *lastp; /* extent pointers in block entry */
+ xfs_bmbt_rec_t *ep; /* pointer to current extent */
+ xfs_bmbt_rec_t *lastp; /* pointer to previous extent */
+ xfs_bmbt_rec_t *nextp; /* pointer to next extent */
int bp_release = 0;
if (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE) {
@@ -6194,7 +6124,6 @@
*/
lastp = NULL;
for (;;) {
- xfs_bmbt_rec_t *frp;
xfs_fsblock_t nextbno;
xfs_extnum_t num_recs;
@@ -6213,18 +6142,20 @@
* conform with the first entry in this one.
*/
- frp = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_bmbt,
+ ep = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_bmbt,
block, 1, mp->m_bmap_dmxr[0]);
-
- for (ep = frp;ep < frp + (num_recs - 1); ep++) {
+ for (j = 1; j < num_recs; j++) {
+ nextp = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_bmbt,
+ block, j + 1, mp->m_bmap_dmxr[0]);
if (lastp) {
xfs_btree_check_rec(XFS_BTNUM_BMAP,
(void *)lastp, (void *)ep);
}
xfs_btree_check_rec(XFS_BTNUM_BMAP, (void *)ep,
- (void *)(ep + 1));
+ (void *)(nextp));
+ lastp = ep;
+ ep = nextp;
}
- lastp = frp + num_recs - 1; /* For the next iteration */
i += num_recs;
if (bp_release) {
@@ -6288,7 +6219,7 @@
mp = ip->i_mount;
ifp = XFS_IFORK_PTR(ip, whichfork);
if ( XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS ) {
- if (unlikely(xfs_bmap_count_leaves(ifp->if_u1.if_extents,
+ if (unlikely(xfs_bmap_count_leaves(ifp, 0,
ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t),
count) < 0)) {
XFS_ERROR_REPORT("xfs_bmap_count_blocks(1)",
@@ -6310,7 +6241,7 @@
ASSERT(XFS_FSB_TO_AGBNO(mp, INT_GET(*pp, ARCH_CONVERT)) < mp->m_sb.sb_agblocks);
bno = INT_GET(*pp, ARCH_CONVERT);
- if (unlikely(xfs_bmap_count_tree(mp, tp, bno, level, count) < 0)) {
+ if (unlikely(xfs_bmap_count_tree(mp, tp, ifp, bno, level, count) < 0)) {
XFS_ERROR_REPORT("xfs_bmap_count_blocks(2)", XFS_ERRLEVEL_LOW,
mp);
return XFS_ERROR(EFSCORRUPTED);
@@ -6327,6 +6258,7 @@
xfs_bmap_count_tree(
xfs_mount_t *mp, /* file system mount point */
xfs_trans_t *tp, /* transaction pointer */
+ xfs_ifork_t *ifp, /* inode fork pointer */
xfs_fsblock_t blockno, /* file system block number */
int levelin, /* level in btree */
int *count) /* Count of blocks */
@@ -6339,7 +6271,6 @@
xfs_fsblock_t nextbno;
xfs_bmbt_block_t *block, *nextblock;
int numrecs;
- xfs_bmbt_rec_t *frp;
if ((error = xfs_btree_read_bufl(mp, tp, bno, 0, &bp, XFS_BMAP_BTREE_REF)))
return error;
@@ -6364,7 +6295,7 @@
xfs_bmbt, block, 1, mp->m_bmap_dmxr[1]);
bno = INT_GET(*pp, ARCH_CONVERT);
if (unlikely((error =
- xfs_bmap_count_tree(mp, tp, bno, level, count)) < 0)) {
+ xfs_bmap_count_tree(mp, tp, ifp, bno, level, count)) < 0)) {
xfs_trans_brelse(tp, bp);
XFS_ERROR_REPORT("xfs_bmap_count_tree(1)",
XFS_ERRLEVEL_LOW, mp);
@@ -6376,9 +6307,8 @@
for (;;) {
nextbno = be64_to_cpu(block->bb_rightsib);
numrecs = be16_to_cpu(block->bb_numrecs);
- frp = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize,
- xfs_bmbt, block, 1, mp->m_bmap_dmxr[0]);
- if (unlikely(xfs_bmap_disk_count_leaves(frp, numrecs, count) < 0)) {
+ if (unlikely(xfs_bmap_disk_count_leaves(ifp, mp,
+ 0, block, numrecs, count) < 0)) {
xfs_trans_brelse(tp, bp);
XFS_ERROR_REPORT("xfs_bmap_count_tree(2)",
XFS_ERRLEVEL_LOW, mp);
@@ -6399,33 +6329,45 @@
}
/*
- * Count leaf blocks given a pointer to an extent list.
+ * Count leaf blocks given a range of extent records.
*/
int
xfs_bmap_count_leaves(
- xfs_bmbt_rec_t *frp,
+ xfs_ifork_t *ifp,
+ xfs_extnum_t idx,
int numrecs,
int *count)
{
int b;
+ xfs_bmbt_rec_t *frp;
- for ( b = 1; b <= numrecs; b++, frp++)
+ for (b = 0; b < numrecs; b++) {
+ frp = xfs_iext_get_ext(ifp, idx + b);
*count += xfs_bmbt_get_blockcount(frp);
+ }
return 0;
}
/*
- * Count leaf blocks given a pointer to an extent list originally in btree format.
+ * Count leaf blocks given a range of extent records originally
+ * in btree format.
*/
int
xfs_bmap_disk_count_leaves(
- xfs_bmbt_rec_t *frp,
+ xfs_ifork_t *ifp,
+ xfs_mount_t *mp,
+ xfs_extnum_t idx,
+ xfs_bmbt_block_t *block,
int numrecs,
int *count)
{
int b;
+ xfs_bmbt_rec_t *frp;
- for ( b = 1; b <= numrecs; b++, frp++)
+ for (b = 1; b <= numrecs; b++) {
+ frp = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize,
+ xfs_bmbt, block, idx + b, mp->m_bmap_dmxr[0]);
*count += xfs_bmbt_disk_get_blockcount(frp);
+ }
return 0;
}