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Diffstat (limited to 'fs/xfs/xfs_bmap.c')
-rw-r--r--fs/xfs/xfs_bmap.c85
1 files changed, 60 insertions, 25 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 4111cd3966c7..fa00788de2f5 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -1038,17 +1038,34 @@ xfs_bmap_add_extent_delay_real(
* Filling in the middle part of a previous delayed allocation.
* Contiguity is impossible here.
* This case is avoided almost all the time.
+ *
+ * We start with a delayed allocation:
+ *
+ * +ddddddddddddddddddddddddddddddddddddddddddddddddddddddd+
+ * PREV @ idx
+ *
+ * and we are allocating:
+ * +rrrrrrrrrrrrrrrrr+
+ * new
+ *
+ * and we set it up for insertion as:
+ * +ddddddddddddddddddd+rrrrrrrrrrrrrrrrr+ddddddddddddddddd+
+ * new
+ * PREV @ idx LEFT RIGHT
+ * inserted at idx + 1
*/
temp = new->br_startoff - PREV.br_startoff;
- trace_xfs_bmap_pre_update(ip, idx, 0, _THIS_IP_);
- xfs_bmbt_set_blockcount(ep, temp);
- r[0] = *new;
- r[1].br_state = PREV.br_state;
- r[1].br_startblock = 0;
- r[1].br_startoff = new_endoff;
temp2 = PREV.br_startoff + PREV.br_blockcount - new_endoff;
- r[1].br_blockcount = temp2;
- xfs_iext_insert(ip, idx + 1, 2, &r[0], state);
+ trace_xfs_bmap_pre_update(ip, idx, 0, _THIS_IP_);
+ xfs_bmbt_set_blockcount(ep, temp); /* truncate PREV */
+ LEFT = *new;
+ RIGHT.br_state = PREV.br_state;
+ RIGHT.br_startblock = nullstartblock(
+ (int)xfs_bmap_worst_indlen(ip, temp2));
+ RIGHT.br_startoff = new_endoff;
+ RIGHT.br_blockcount = temp2;
+ /* insert LEFT (r[0]) and RIGHT (r[1]) at the same time */
+ xfs_iext_insert(ip, idx + 1, 2, &LEFT, state);
ip->i_df.if_lastex = idx + 1;
ip->i_d.di_nextents++;
if (cur == NULL)
@@ -2348,6 +2365,13 @@ xfs_bmap_rtalloc(
*/
if (ralen * mp->m_sb.sb_rextsize >= MAXEXTLEN)
ralen = MAXEXTLEN / mp->m_sb.sb_rextsize;
+
+ /*
+ * Lock out other modifications to the RT bitmap inode.
+ */
+ xfs_ilock(mp->m_rbmip, XFS_ILOCK_EXCL);
+ xfs_trans_ijoin_ref(ap->tp, mp->m_rbmip, XFS_ILOCK_EXCL);
+
/*
* If it's an allocation to an empty file at offset 0,
* pick an extent that will space things out in the rt area.
@@ -2430,7 +2454,7 @@ xfs_bmap_btalloc_nullfb(
startag = ag = 0;
pag = xfs_perag_get(mp, ag);
- while (*blen < ap->alen) {
+ while (*blen < args->maxlen) {
if (!pag->pagf_init) {
error = xfs_alloc_pagf_init(mp, args->tp, ag,
XFS_ALLOC_FLAG_TRYLOCK);
@@ -2452,7 +2476,7 @@ xfs_bmap_btalloc_nullfb(
notinit = 1;
if (xfs_inode_is_filestream(ap->ip)) {
- if (*blen >= ap->alen)
+ if (*blen >= args->maxlen)
break;
if (ap->userdata) {
@@ -2498,14 +2522,14 @@ xfs_bmap_btalloc_nullfb(
* If the best seen length is less than the request
* length, use the best as the minimum.
*/
- else if (*blen < ap->alen)
+ else if (*blen < args->maxlen)
args->minlen = *blen;
/*
- * Otherwise we've seen an extent as big as alen,
+ * Otherwise we've seen an extent as big as maxlen,
* use that as the minimum.
*/
else
- args->minlen = ap->alen;
+ args->minlen = args->maxlen;
/*
* set the failure fallback case to look in the selected
@@ -2573,7 +2597,9 @@ xfs_bmap_btalloc(
args.tp = ap->tp;
args.mp = mp;
args.fsbno = ap->rval;
- args.maxlen = MIN(ap->alen, mp->m_sb.sb_agblocks);
+
+ /* Trim the allocation back to the maximum an AG can fit. */
+ args.maxlen = MIN(ap->alen, XFS_ALLOC_AG_MAX_USABLE(mp));
args.firstblock = ap->firstblock;
blen = 0;
if (nullfb) {
@@ -2621,7 +2647,7 @@ xfs_bmap_btalloc(
/*
* Adjust for alignment
*/
- if (blen > args.alignment && blen <= ap->alen)
+ if (blen > args.alignment && blen <= args.maxlen)
args.minlen = blen - args.alignment;
args.minalignslop = 0;
} else {
@@ -2640,7 +2666,7 @@ xfs_bmap_btalloc(
* of minlen+alignment+slop doesn't go up
* between the calls.
*/
- if (blen > mp->m_dalign && blen <= ap->alen)
+ if (blen > mp->m_dalign && blen <= args.maxlen)
nextminlen = blen - mp->m_dalign;
else
nextminlen = args.minlen;
@@ -3500,7 +3526,7 @@ xfs_bmap_search_extents(
if (unlikely(!(gotp->br_startblock) && (*lastxp != NULLEXTNUM) &&
!(XFS_IS_REALTIME_INODE(ip) && fork == XFS_DATA_FORK))) {
- xfs_cmn_err(XFS_PTAG_FSBLOCK_ZERO, CE_ALERT, ip->i_mount,
+ xfs_alert_tag(ip->i_mount, XFS_PTAG_FSBLOCK_ZERO,
"Access to block zero in inode %llu "
"start_block: %llx start_off: %llx "
"blkcnt: %llx extent-state: %x lastx: %x\n",
@@ -4174,12 +4200,11 @@ xfs_bmap_read_extents(
num_recs = xfs_btree_get_numrecs(block);
if (unlikely(i + num_recs > room)) {
ASSERT(i + num_recs <= room);
- xfs_fs_repair_cmn_err(CE_WARN, ip->i_mount,
+ xfs_warn(ip->i_mount,
"corrupt dinode %Lu, (btree extents).",
(unsigned long long) ip->i_ino);
- XFS_ERROR_REPORT("xfs_bmap_read_extents(1)",
- XFS_ERRLEVEL_LOW,
- ip->i_mount);
+ XFS_CORRUPTION_ERROR("xfs_bmap_read_extents(1)",
+ XFS_ERRLEVEL_LOW, ip->i_mount, block);
goto error0;
}
XFS_WANT_CORRUPTED_GOTO(
@@ -4485,6 +4510,16 @@ xfs_bmapi(
/* Figure out the extent size, adjust alen */
extsz = xfs_get_extsz_hint(ip);
if (extsz) {
+ /*
+ * make sure we don't exceed a single
+ * extent length when we align the
+ * extent by reducing length we are
+ * going to allocate by the maximum
+ * amount extent size aligment may
+ * require.
+ */
+ alen = XFS_FILBLKS_MIN(len,
+ MAXEXTLEN - (2 * extsz - 1));
error = xfs_bmap_extsize_align(mp,
&got, &prev, extsz,
rt, eof,
@@ -5743,7 +5778,7 @@ xfs_check_block(
else
thispa = XFS_BMBT_PTR_ADDR(mp, block, j, dmxr);
if (*thispa == *pp) {
- cmn_err(CE_WARN, "%s: thispa(%d) == pp(%d) %Ld",
+ xfs_warn(mp, "%s: thispa(%d) == pp(%d) %Ld",
__func__, j, i,
(unsigned long long)be64_to_cpu(*thispa));
panic("%s: ptrs are equal in node\n",
@@ -5908,11 +5943,11 @@ xfs_bmap_check_leaf_extents(
return;
error0:
- cmn_err(CE_WARN, "%s: at error0", __func__);
+ xfs_warn(mp, "%s: at error0", __func__);
if (bp_release)
xfs_trans_brelse(NULL, bp);
error_norelse:
- cmn_err(CE_WARN, "%s: BAD after btree leaves for %d extents",
+ xfs_warn(mp, "%s: BAD after btree leaves for %d extents",
__func__, i);
panic("%s: CORRUPTED BTREE OR SOMETHING", __func__);
return;
@@ -6115,7 +6150,7 @@ xfs_bmap_punch_delalloc_range(
if (error) {
/* something screwed, just bail */
if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) {
- xfs_fs_cmn_err(CE_ALERT, ip->i_mount,
+ xfs_alert(ip->i_mount,
"Failed delalloc mapping lookup ino %lld fsb %lld.",
ip->i_ino, start_fsb);
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-20 04:21:23 +0000