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-rw-r--r--fs/xfs/libxfs/xfs_ag_resv.c70
-rw-r--r--fs/xfs/libxfs/xfs_alloc.c224
-rw-r--r--fs/xfs/libxfs/xfs_alloc.h6
-rw-r--r--fs/xfs/libxfs/xfs_attr.c6
-rw-r--r--fs/xfs/libxfs/xfs_bmap.c250
-rw-r--r--fs/xfs/libxfs/xfs_bmap.h6
-rw-r--r--fs/xfs/libxfs/xfs_bmap_btree.c13
-rw-r--r--fs/xfs/libxfs/xfs_btree.c48
-rw-r--r--fs/xfs/libxfs/xfs_btree.h8
-rw-r--r--fs/xfs/libxfs/xfs_da_btree.c6
-rw-r--r--fs/xfs/libxfs/xfs_da_btree.h2
-rw-r--r--fs/xfs/libxfs/xfs_dir2.c39
-rw-r--r--fs/xfs/libxfs/xfs_dir2.h8
-rw-r--r--fs/xfs/libxfs/xfs_dir2_node.c51
-rw-r--r--fs/xfs/libxfs/xfs_ialloc.c3
-rw-r--r--fs/xfs/libxfs/xfs_ialloc_btree.c90
-rw-r--r--fs/xfs/libxfs/xfs_ialloc_btree.h3
-rw-r--r--fs/xfs/libxfs/xfs_inode_buf.c10
-rw-r--r--fs/xfs/libxfs/xfs_inode_fork.c9
-rw-r--r--fs/xfs/libxfs/xfs_log_recover.h1
-rw-r--r--fs/xfs/libxfs/xfs_sb.c2
21 files changed, 515 insertions, 340 deletions
diff --git a/fs/xfs/libxfs/xfs_ag_resv.c b/fs/xfs/libxfs/xfs_ag_resv.c
index d346d42c54d1..33db69be4832 100644
--- a/fs/xfs/libxfs/xfs_ag_resv.c
+++ b/fs/xfs/libxfs/xfs_ag_resv.c
@@ -39,6 +39,7 @@
#include "xfs_rmap_btree.h"
#include "xfs_btree.h"
#include "xfs_refcount_btree.h"
+#include "xfs_ialloc_btree.h"
/*
* Per-AG Block Reservations
@@ -200,22 +201,30 @@ __xfs_ag_resv_init(
struct xfs_mount *mp = pag->pag_mount;
struct xfs_ag_resv *resv;
int error;
+ xfs_extlen_t reserved;
- resv = xfs_perag_resv(pag, type);
if (used > ask)
ask = used;
- resv->ar_asked = ask;
- resv->ar_reserved = resv->ar_orig_reserved = ask - used;
- mp->m_ag_max_usable -= ask;
+ reserved = ask - used;
- trace_xfs_ag_resv_init(pag, type, ask);
-
- error = xfs_mod_fdblocks(mp, -(int64_t)resv->ar_reserved, true);
- if (error)
+ error = xfs_mod_fdblocks(mp, -(int64_t)reserved, true);
+ if (error) {
trace_xfs_ag_resv_init_error(pag->pag_mount, pag->pag_agno,
error, _RET_IP_);
+ xfs_warn(mp,
+"Per-AG reservation for AG %u failed. Filesystem may run out of space.",
+ pag->pag_agno);
+ return error;
+ }
- return error;
+ mp->m_ag_max_usable -= ask;
+
+ resv = xfs_perag_resv(pag, type);
+ resv->ar_asked = ask;
+ resv->ar_reserved = resv->ar_orig_reserved = reserved;
+
+ trace_xfs_ag_resv_init(pag, type, ask);
+ return 0;
}
/* Create a per-AG block reservation. */
@@ -223,6 +232,8 @@ int
xfs_ag_resv_init(
struct xfs_perag *pag)
{
+ struct xfs_mount *mp = pag->pag_mount;
+ xfs_agnumber_t agno = pag->pag_agno;
xfs_extlen_t ask;
xfs_extlen_t used;
int error = 0;
@@ -231,23 +242,45 @@ xfs_ag_resv_init(
if (pag->pag_meta_resv.ar_asked == 0) {
ask = used = 0;
- error = xfs_refcountbt_calc_reserves(pag->pag_mount,
- pag->pag_agno, &ask, &used);
+ error = xfs_refcountbt_calc_reserves(mp, agno, &ask, &used);
if (error)
goto out;
- error = __xfs_ag_resv_init(pag, XFS_AG_RESV_METADATA,
- ask, used);
+ error = xfs_finobt_calc_reserves(mp, agno, &ask, &used);
if (error)
goto out;
+
+ error = __xfs_ag_resv_init(pag, XFS_AG_RESV_METADATA,
+ ask, used);
+ if (error) {
+ /*
+ * Because we didn't have per-AG reservations when the
+ * finobt feature was added we might not be able to
+ * reserve all needed blocks. Warn and fall back to the
+ * old and potentially buggy code in that case, but
+ * ensure we do have the reservation for the refcountbt.
+ */
+ ask = used = 0;
+
+ mp->m_inotbt_nores = true;
+
+ error = xfs_refcountbt_calc_reserves(mp, agno, &ask,
+ &used);
+ if (error)
+ goto out;
+
+ error = __xfs_ag_resv_init(pag, XFS_AG_RESV_METADATA,
+ ask, used);
+ if (error)
+ goto out;
+ }
}
/* Create the AGFL metadata reservation */
if (pag->pag_agfl_resv.ar_asked == 0) {
ask = used = 0;
- error = xfs_rmapbt_calc_reserves(pag->pag_mount, pag->pag_agno,
- &ask, &used);
+ error = xfs_rmapbt_calc_reserves(mp, agno, &ask, &used);
if (error)
goto out;
@@ -256,9 +289,16 @@ xfs_ag_resv_init(
goto out;
}
+#ifdef DEBUG
+ /* need to read in the AGF for the ASSERT below to work */
+ error = xfs_alloc_pagf_init(pag->pag_mount, NULL, pag->pag_agno, 0);
+ if (error)
+ return error;
+
ASSERT(xfs_perag_resv(pag, XFS_AG_RESV_METADATA)->ar_reserved +
xfs_perag_resv(pag, XFS_AG_RESV_AGFL)->ar_reserved <=
pag->pagf_freeblks + pag->pagf_flcount);
+#endif
out:
return error;
}
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index 5050056a0b06..369adcc18c02 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -95,10 +95,7 @@ unsigned int
xfs_alloc_set_aside(
struct xfs_mount *mp)
{
- unsigned int blocks;
-
- blocks = 4 + (mp->m_sb.sb_agcount * XFS_ALLOC_AGFL_RESERVE);
- return blocks;
+ return mp->m_sb.sb_agcount * (XFS_ALLOC_AGFL_RESERVE + 4);
}
/*
@@ -224,20 +221,22 @@ xfs_alloc_get_rec(
* Compute aligned version of the found extent.
* Takes alignment and min length into account.
*/
-STATIC void
+STATIC bool
xfs_alloc_compute_aligned(
xfs_alloc_arg_t *args, /* allocation argument structure */
xfs_agblock_t foundbno, /* starting block in found extent */
xfs_extlen_t foundlen, /* length in found extent */
xfs_agblock_t *resbno, /* result block number */
- xfs_extlen_t *reslen) /* result length */
+ xfs_extlen_t *reslen, /* result length */
+ unsigned *busy_gen)
{
- xfs_agblock_t bno;
- xfs_extlen_t len;
+ xfs_agblock_t bno = foundbno;
+ xfs_extlen_t len = foundlen;
xfs_extlen_t diff;
+ bool busy;
/* Trim busy sections out of found extent */
- xfs_extent_busy_trim(args, foundbno, foundlen, &bno, &len);
+ busy = xfs_extent_busy_trim(args, &bno, &len, busy_gen);
/*
* If we have a largish extent that happens to start before min_agbno,
@@ -262,6 +261,8 @@ xfs_alloc_compute_aligned(
*resbno = bno;
*reslen = len;
}
+
+ return busy;
}
/*
@@ -365,36 +366,12 @@ xfs_alloc_fix_len(
return;
ASSERT(rlen >= args->minlen && rlen <= args->maxlen);
ASSERT(rlen % args->prod == args->mod);
+ ASSERT(args->pag->pagf_freeblks + args->pag->pagf_flcount >=
+ rlen + args->minleft);
args->len = rlen;
}
/*
- * Fix up length if there is too little space left in the a.g.
- * Return 1 if ok, 0 if too little, should give up.
- */
-STATIC int
-xfs_alloc_fix_minleft(
- xfs_alloc_arg_t *args) /* allocation argument structure */
-{
- xfs_agf_t *agf; /* a.g. freelist header */
- int diff; /* free space difference */
-
- if (args->minleft == 0)
- return 1;
- agf = XFS_BUF_TO_AGF(args->agbp);
- diff = be32_to_cpu(agf->agf_freeblks)
- - args->len - args->minleft;
- if (diff >= 0)
- return 1;
- args->len += diff; /* shrink the allocated space */
- /* casts to (int) catch length underflows */
- if ((int)args->len >= (int)args->minlen)
- return 1;
- args->agbno = NULLAGBLOCK;
- return 0;
-}
-
-/*
* Update the two btrees, logically removing from freespace the extent
* starting at rbno, rlen blocks. The extent is contained within the
* actual (current) free extent fbno for flen blocks.
@@ -689,8 +666,6 @@ xfs_alloc_ag_vextent(
xfs_alloc_arg_t *args) /* argument structure for allocation */
{
int error=0;
- xfs_extlen_t reservation;
- xfs_extlen_t oldmax;
ASSERT(args->minlen > 0);
ASSERT(args->maxlen > 0);
@@ -699,20 +674,6 @@ xfs_alloc_ag_vextent(
ASSERT(args->alignment > 0);
/*
- * Clamp maxlen to the amount of free space minus any reservations
- * that have been made.
- */
- oldmax = args->maxlen;
- reservation = xfs_ag_resv_needed(args->pag, args->resv);
- if (args->maxlen > args->pag->pagf_freeblks - reservation)
- args->maxlen = args->pag->pagf_freeblks - reservation;
- if (args->maxlen == 0) {
- args->agbno = NULLAGBLOCK;
- args->maxlen = oldmax;
- return 0;
- }
-
- /*
* Branch to correct routine based on the type.
*/
args->wasfromfl = 0;
@@ -731,8 +692,6 @@ xfs_alloc_ag_vextent(
/* NOTREACHED */
}
- args->maxlen = oldmax;
-
if (error || args->agbno == NULLAGBLOCK)
return error;
@@ -782,10 +741,11 @@ xfs_alloc_ag_vextent_exact(
int error;
xfs_agblock_t fbno; /* start block of found extent */
xfs_extlen_t flen; /* length of found extent */
- xfs_agblock_t tbno; /* start block of trimmed extent */
- xfs_extlen_t tlen; /* length of trimmed extent */
- xfs_agblock_t tend; /* end block of trimmed extent */
+ xfs_agblock_t tbno; /* start block of busy extent */
+ xfs_extlen_t tlen; /* length of busy extent */
+ xfs_agblock_t tend; /* end block of busy extent */
int i; /* success/failure of operation */
+ unsigned busy_gen;
ASSERT(args->alignment == 1);
@@ -818,7 +778,9 @@ xfs_alloc_ag_vextent_exact(
/*
* Check for overlapping busy extents.
*/
- xfs_extent_busy_trim(args, fbno, flen, &tbno, &tlen);
+ tbno = fbno;
+ tlen = flen;
+ xfs_extent_busy_trim(args, &tbno, &tlen, &busy_gen);
/*
* Give up if the start of the extent is busy, or the freespace isn't
@@ -841,9 +803,6 @@ xfs_alloc_ag_vextent_exact(
args->len = XFS_AGBLOCK_MIN(tend, args->agbno + args->maxlen)
- args->agbno;
xfs_alloc_fix_len(args);
- if (!xfs_alloc_fix_minleft(args))
- goto not_found;
-
ASSERT(args->agbno + args->len <= tend);
/*
@@ -901,6 +860,7 @@ xfs_alloc_find_best_extent(
xfs_agblock_t sdiff;
int error;
int i;
+ unsigned busy_gen;
/* The good extent is perfect, no need to search. */
if (!gdiff)
@@ -914,7 +874,8 @@ xfs_alloc_find_best_extent(
if (error)
goto error0;
XFS_WANT_CORRUPTED_GOTO(args->mp, i == 1, error0);
- xfs_alloc_compute_aligned(args, *sbno, *slen, sbnoa, slena);
+ xfs_alloc_compute_aligned(args, *sbno, *slen,
+ sbnoa, slena, &busy_gen);
/*
* The good extent is closer than this one.
@@ -1003,7 +964,8 @@ xfs_alloc_ag_vextent_near(
xfs_extlen_t ltlena; /* aligned ... */
xfs_agblock_t ltnew; /* useful start bno of left side */
xfs_extlen_t rlen; /* length of returned extent */
- int forced = 0;
+ bool busy;
+ unsigned busy_gen;
#ifdef DEBUG
/*
* Randomly don't execute the first algorithm.
@@ -1030,6 +992,7 @@ restart:
ltlen = 0;
gtlena = 0;
ltlena = 0;
+ busy = false;
/*
* Get a cursor for the by-size btree.
@@ -1112,8 +1075,8 @@ restart:
if ((error = xfs_alloc_get_rec(cnt_cur, &ltbno, &ltlen, &i)))
goto error0;
XFS_WANT_CORRUPTED_GOTO(args->mp, i == 1, error0);
- xfs_alloc_compute_aligned(args, ltbno, ltlen,
- &ltbnoa, &ltlena);
+ busy = xfs_alloc_compute_aligned(args, ltbno, ltlen,
+ &ltbnoa, &ltlena, &busy_gen);
if (ltlena < args->minlen)
continue;
if (ltbnoa < args->min_agbno || ltbnoa > args->max_agbno)
@@ -1149,12 +1112,7 @@ restart:
XFS_WANT_CORRUPTED_GOTO(args->mp, i == 1, error0);
ASSERT(ltbno + ltlen <= be32_to_cpu(XFS_BUF_TO_AGF(args->agbp)->agf_length));
args->len = blen;
- if (!xfs_alloc_fix_minleft(args)) {
- xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
- trace_xfs_alloc_near_nominleft(args);
- return 0;
- }
- blen = args->len;
+
/*
* We are allocating starting at bnew for blen blocks.
*/
@@ -1236,8 +1194,8 @@ restart:
if ((error = xfs_alloc_get_rec(bno_cur_lt, &ltbno, &ltlen, &i)))
goto error0;
XFS_WANT_CORRUPTED_GOTO(args->mp, i == 1, error0);
- xfs_alloc_compute_aligned(args, ltbno, ltlen,
- &ltbnoa, &ltlena);
+ busy |= xfs_alloc_compute_aligned(args, ltbno, ltlen,
+ &ltbnoa, &ltlena, &busy_gen);
if (ltlena >= args->minlen && ltbnoa >= args->min_agbno)
break;
if ((error = xfs_btree_decrement(bno_cur_lt, 0, &i)))
@@ -1252,8 +1210,8 @@ restart:
if ((error = xfs_alloc_get_rec(bno_cur_gt, &gtbno, &gtlen, &i)))
goto error0;
XFS_WANT_CORRUPTED_GOTO(args->mp, i == 1, error0);
- xfs_alloc_compute_aligned(args, gtbno, gtlen,
- &gtbnoa, &gtlena);
+ busy |= xfs_alloc_compute_aligned(args, gtbno, gtlen,
+ &gtbnoa, &gtlena, &busy_gen);
if (gtlena >= args->minlen && gtbnoa <= args->max_agbno)
break;
if ((error = xfs_btree_increment(bno_cur_gt, 0, &i)))
@@ -1314,9 +1272,9 @@ restart:
if (bno_cur_lt == NULL && bno_cur_gt == NULL) {
xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
- if (!forced++) {
+ if (busy) {
trace_xfs_alloc_near_busy(args);
- xfs_log_force(args->mp, XFS_LOG_SYNC);
+ xfs_extent_busy_flush(args->mp, args->pag, busy_gen);
goto restart;
}
trace_xfs_alloc_size_neither(args);
@@ -1346,12 +1304,6 @@ restart:
*/
args->len = XFS_EXTLEN_MIN(ltlena, args->maxlen);
xfs_alloc_fix_len(args);
- if (!xfs_alloc_fix_minleft(args)) {
- trace_xfs_alloc_near_nominleft(args);
- xfs_btree_del_cursor(bno_cur_lt, XFS_BTREE_NOERROR);
- xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
- return 0;
- }
rlen = args->len;
(void)xfs_alloc_compute_diff(args->agbno, rlen, args->alignment,
args->datatype, ltbnoa, ltlena, &ltnew);
@@ -1403,7 +1355,8 @@ xfs_alloc_ag_vextent_size(
int i; /* temp status variable */
xfs_agblock_t rbno; /* returned block number */
xfs_extlen_t rlen; /* length of returned extent */
- int forced = 0;
+ bool busy;
+ unsigned busy_gen;
restart:
/*
@@ -1412,6 +1365,7 @@ restart:
cnt_cur = xfs_allocbt_init_cursor(args->mp, args->tp, args->agbp,
args->agno, XFS_BTNUM_CNT);
bno_cur = NULL;
+ busy = false;
/*
* Look for an entry >= maxlen+alignment-1 blocks.
@@ -1421,14 +1375,13 @@ restart:
goto error0;
/*
- * If none or we have busy extents that we cannot allocate from, then
- * we have to settle for a smaller extent. In the case that there are
- * no large extents, this will return the last entry in the tree unless
- * the tree is empty. In the case that there are only busy large
- * extents, this will return the largest small extent unless there
+ * If none then we have to settle for a smaller extent. In the case that
+ * there are no large extents, this will return the last entry in the
+ * tree unless the tree is empty. In the case that there are only busy
+ * large extents, this will return the largest small extent unless there
* are no smaller extents available.
*/
- if (!i || forced > 1) {
+ if (!i) {
error = xfs_alloc_ag_vextent_small(args, cnt_cur,
&fbno, &flen, &i);
if (error)
@@ -1439,13 +1392,11 @@ restart:
return 0;
}
ASSERT(i == 1);
- xfs_alloc_compute_aligned(args, fbno, flen, &rbno, &rlen);
+ busy = xfs_alloc_compute_aligned(args, fbno, flen, &rbno,
+ &rlen, &busy_gen);
} else {
/*
* Search for a non-busy extent that is large enough.
- * If we are at low space, don't check, or if we fall of
- * the end of the btree, turn off the busy check and
- * restart.
*/
for (;;) {
error = xfs_alloc_get_rec(cnt_cur, &fbno, &flen, &i);
@@ -1453,8 +1404,8 @@ restart:
goto error0;
XFS_WANT_CORRUPTED_GOTO(args->mp, i == 1, error0);
- xfs_alloc_compute_aligned(args, fbno, flen,
- &rbno, &rlen);
+ busy = xfs_alloc_compute_aligned(args, fbno, flen,
+ &rbno, &rlen, &busy_gen);
if (rlen >= args->maxlen)
break;
@@ -1466,18 +1417,13 @@ restart:
/*
* Our only valid extents must have been busy.
* Make it unbusy by forcing the log out and
- * retrying. If we've been here before, forcing
- * the log isn't making the extents available,
- * which means they have probably been freed in
- * this transaction. In that case, we have to
- * give up on them and we'll attempt a minlen
- * allocation the next time around.
+ * retrying.
*/
xfs_btree_del_cursor(cnt_cur,
XFS_BTREE_NOERROR);
trace_xfs_alloc_size_busy(args);
- if (!forced++)
- xfs_log_force(args->mp, XFS_LOG_SYNC);
+ xfs_extent_busy_flush(args->mp,
+ args->pag, busy_gen);
goto restart;
}
}
@@ -1513,8 +1459,8 @@ restart:
XFS_WANT_CORRUPTED_GOTO(args->mp, i == 1, error0);
if (flen < bestrlen)
break;
- xfs_alloc_compute_aligned(args, fbno, flen,
- &rbno, &rlen);
+ busy = xfs_alloc_compute_aligned(args, fbno, flen,
+ &rbno, &rlen, &busy_gen);
rlen = XFS_EXTLEN_MIN(args->maxlen, rlen);
XFS_WANT_CORRUPTED_GOTO(args->mp, rlen == 0 ||
(rlen <= flen && rbno + rlen <= fbno + flen),
@@ -1543,18 +1489,16 @@ restart:
*/
args->len = rlen;
if (rlen < args->minlen) {
- if (!forced++) {
+ if (busy) {
xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
trace_xfs_alloc_size_busy(args);
- xfs_log_force(args->mp, XFS_LOG_SYNC);
+ xfs_extent_busy_flush(args->mp, args->pag, busy_gen);
goto restart;
}
goto out_nominleft;
}
xfs_alloc_fix_len(args);
- if (!xfs_alloc_fix_minleft(args))
- goto out_nominleft;
rlen = args->len;
XFS_WANT_CORRUPTED_GOTO(args->mp, rlen <= flen, error0);
/*
@@ -2056,7 +2000,7 @@ xfs_alloc_space_available(
int flags)
{
struct xfs_perag *pag = args->pag;
- xfs_extlen_t longest;
+ xfs_extlen_t alloc_len, longest;
xfs_extlen_t reservation; /* blocks that are still reserved */
int available;
@@ -2066,17 +2010,28 @@ xfs_alloc_space_available(
reservation = xfs_ag_resv_needed(pag, args->resv);
/* do we have enough contiguous free space for the allocation? */
+ alloc_len = args->minlen + (args->alignment - 1) + args->minalignslop;
longest = xfs_alloc_longest_free_extent(args->mp, pag, min_free,
reservation);
- if ((args->minlen + args->alignment + args->minalignslop - 1) > longest)
+ if (longest < alloc_len)
return false;
/* do we have enough free space remaining for the allocation? */
available = (int)(pag->pagf_freeblks + pag->pagf_flcount -
- reservation - min_free - args->total);
- if (available < (int)args->minleft || available <= 0)
+ reservation - min_free - args->minleft);
+ if (available < (int)max(args->total, alloc_len))
return false;
+ /*
+ * Clamp maxlen to the amount of free space available for the actual
+ * extent allocation.
+ */
+ if (available < (int)args->maxlen && !(flags & XFS_ALLOC_FLAG_CHECK)) {
+ args->maxlen = available;
+ ASSERT(args->maxlen > 0);
+ ASSERT(args->maxlen >= args->minlen);
+ }
+
return true;
}
@@ -2122,7 +2077,8 @@ xfs_alloc_fix_freelist(
}
need = xfs_alloc_min_freelist(mp, pag);
- if (!xfs_alloc_space_available(args, need, flags))
+ if (!xfs_alloc_space_available(args, need, flags |
+ XFS_ALLOC_FLAG_CHECK))
goto out_agbp_relse;
/*
@@ -2638,12 +2594,10 @@ xfs_alloc_vextent(
xfs_agblock_t agsize; /* allocation group size */
int error;
int flags; /* XFS_ALLOC_FLAG_... locking flags */
- xfs_extlen_t minleft;/* minimum left value, temp copy */
xfs_mount_t *mp; /* mount structure pointer */
xfs_agnumber_t sagno; /* starting allocation group number */
xfs_alloctype_t type; /* input allocation type */
int bump_rotor = 0;
- int no_min = 0;
xfs_agnumber_t rotorstep = xfs_rotorstep; /* inode32 agf stepper */
mp = args->mp;
@@ -2672,7 +2626,6 @@ xfs_alloc_vextent(
trace_xfs_alloc_vextent_badargs(args);
return 0;
}
- minleft = args->minleft;
switch (type) {
case XFS_ALLOCTYPE_THIS_AG:
@@ -2683,9 +2636,7 @@ xfs_alloc_vextent(
*/
args->agno = XFS_FSB_TO_AGNO(mp, args->fsbno);
args->pag = xfs_perag_get(mp, args->agno);
- args->minleft = 0;
error = xfs_alloc_fix_freelist(args, 0);
- args->minleft = minleft;
if (error) {
trace_xfs_alloc_vextent_nofix(args);
goto error0;
@@ -2713,21 +2664,11 @@ xfs_alloc_vextent(
args->agbno = XFS_FSB_TO_AGBNO(mp, args->fsbno);
args->type = XFS_ALLOCTYPE_NEAR_BNO;
/* FALLTHROUGH */
- case XFS_ALLOCTYPE_ANY_AG:
- case XFS_ALLOCTYPE_START_AG:
case XFS_ALLOCTYPE_FIRST_AG:
/*
* Rotate through the allocation groups looking for a winner.
*/
- if (type == XFS_ALLOCTYPE_ANY_AG) {
- /*
- * Start with the last place we left off.
- */
- args->agno = sagno = (mp->m_agfrotor / rotorstep) %
- mp->m_sb.sb_agcount;
- args->type = XFS_ALLOCTYPE_THIS_AG;
- flags = XFS_ALLOC_FLAG_TRYLOCK;
- } else if (type == XFS_ALLOCTYPE_FIRST_AG) {
+ if (type == XFS_ALLOCTYPE_FIRST_AG) {
/*
* Start with allocation group given by bno.
*/
@@ -2736,8 +2677,6 @@ xfs_alloc_vextent(
sagno = 0;
flags = 0;
} else {
- if (type == XFS_ALLOCTYPE_START_AG)
- args->type = XFS_ALLOCTYPE_THIS_AG;
/*
* Start with the given allocation group.
*/
@@ -2750,9 +2689,7 @@ xfs_alloc_vextent(
*/
for (;;) {
args->pag = xfs_perag_get(mp, args->agno);
- if (no_min) args->minleft = 0;
error = xfs_alloc_fix_freelist(args, flags);
- args->minleft = minleft;
if (error) {
trace_xfs_alloc_vextent_nofix(args);
goto error0;
@@ -2792,25 +2729,22 @@ xfs_alloc_vextent(
* or switch to non-trylock mode.
*/
if (args->agno == sagno) {
- if (no_min == 1) {
+ if (flags == 0) {
args->agbno = NULLAGBLOCK;
trace_xfs_alloc_vextent_allfailed(args);
break;
}
- if (flags == 0) {
- no_min = 1;
- } else {
- flags = 0;
- if (type == XFS_ALLOCTYPE_START_BNO) {
- args->agbno = XFS_FSB_TO_AGBNO(mp,
- args->fsbno);
- args->type = XFS_ALLOCTYPE_NEAR_BNO;
- }
+
+ flags = 0;
+ if (type == XFS_ALLOCTYPE_START_BNO) {
+ args->agbno = XFS_FSB_TO_AGBNO(mp,
+ args->fsbno);
+ args->type = XFS_ALLOCTYPE_NEAR_BNO;
}
}
xfs_perag_put(args->pag);
}
- if (bump_rotor || (type == XFS_ALLOCTYPE_ANY_AG)) {
+ if (bump_rotor) {
if (args->agno == sagno)
mp->m_agfrotor = (mp->m_agfrotor + 1) %
(mp->m_sb.sb_agcount * rotorstep);
diff --git a/fs/xfs/libxfs/xfs_alloc.h b/fs/xfs/libxfs/xfs_alloc.h
index 7c404a6b0ae3..2a8d0fa6fbbe 100644
--- a/fs/xfs/libxfs/xfs_alloc.h
+++ b/fs/xfs/libxfs/xfs_alloc.h
@@ -29,9 +29,7 @@ extern struct workqueue_struct *xfs_alloc_wq;
/*
* Freespace allocation types. Argument to xfs_alloc_[v]extent.
*/
-#define XFS_ALLOCTYPE_ANY_AG 0x01 /* allocate anywhere, use rotor */
#define XFS_ALLOCTYPE_FIRST_AG 0x02 /* ... start at ag 0 */
-#define XFS_ALLOCTYPE_START_AG 0x04 /* anywhere, start in this a.g. */
#define XFS_ALLOCTYPE_THIS_AG 0x08 /* anywhere in this a.g. */
#define XFS_ALLOCTYPE_START_BNO 0x10 /* near this block else anywhere */
#define XFS_ALLOCTYPE_NEAR_BNO 0x20 /* in this a.g. and near this block */
@@ -41,9 +39,7 @@ extern struct workqueue_struct *xfs_alloc_wq;
typedef unsigned int xfs_alloctype_t;
#define XFS_ALLOC_TYPES \
- { XFS_ALLOCTYPE_ANY_AG, "ANY_AG" }, \
{ XFS_ALLOCTYPE_FIRST_AG, "FIRST_AG" }, \
- { XFS_ALLOCTYPE_START_AG, "START_AG" }, \
{ XFS_ALLOCTYPE_THIS_AG, "THIS_AG" }, \
{ XFS_ALLOCTYPE_START_BNO, "START_BNO" }, \
{ XFS_ALLOCTYPE_NEAR_BNO, "NEAR_BNO" }, \
@@ -56,7 +52,7 @@ typedef unsigned int xfs_alloctype_t;
#define XFS_ALLOC_FLAG_FREEING 0x00000002 /* indicate caller is freeing extents*/
#define XFS_ALLOC_FLAG_NORMAP 0x00000004 /* don't modify the rmapbt */
#define XFS_ALLOC_FLAG_NOSHRINK 0x00000008 /* don't shrink the freelist */
-
+#define XFS_ALLOC_FLAG_CHECK 0x00000010 /* test only, don't modify args */
/*
* Argument structure for xfs_alloc routines.
diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c
index af1ecb19121e..6622d46ddec3 100644
--- a/fs/xfs/libxfs/xfs_attr.c
+++ b/fs/xfs/libxfs/xfs_attr.c
@@ -131,9 +131,6 @@ xfs_attr_get(
if (XFS_FORCED_SHUTDOWN(ip->i_mount))
return -EIO;
- if (!xfs_inode_hasattr(ip))
- return -ENOATTR;
-
error = xfs_attr_args_init(&args, ip, name, flags);
if (error)
return error;
@@ -392,9 +389,6 @@ xfs_attr_remove(
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return -EIO;
- if (!xfs_inode_hasattr(dp))
- return -ENOATTR;
-
error = xfs_attr_args_init(&args, dp, name, flags);
if (error)
return error;
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 2760bc3b2536..a9c66d47757a 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -740,15 +740,9 @@ xfs_bmap_extents_to_btree(
* Fill in the root.
*/
block = ifp->if_broot;
- if (xfs_sb_version_hascrc(&mp->m_sb))
- xfs_btree_init_block_int(mp, block, XFS_BUF_DADDR_NULL,
- XFS_BMAP_CRC_MAGIC, 1, 1, ip->i_ino,
- XFS_BTREE_LONG_PTRS | XFS_BTREE_CRC_BLOCKS);
- else
- xfs_btree_init_block_int(mp, block, XFS_BUF_DADDR_NULL,
- XFS_BMAP_MAGIC, 1, 1, ip->i_ino,
+ xfs_btree_init_block_int(mp, block, XFS_BUF_DADDR_NULL,
+ XFS_BTNUM_BMAP, 1, 1, ip->i_ino,
XFS_BTREE_LONG_PTRS);
-
/*
* Need a cursor. Can't allocate until bb_level is filled in.
*/
@@ -804,9 +798,7 @@ try_another_ag:
*/
ASSERT(args.fsbno != NULLFSBLOCK);
ASSERT(*firstblock == NULLFSBLOCK ||
- args.agno == XFS_FSB_TO_AGNO(mp, *firstblock) ||
- (dfops->dop_low &&
- args.agno > XFS_FSB_TO_AGNO(mp, *firstblock)));
+ args.agno >= XFS_FSB_TO_AGNO(mp, *firstblock));
*firstblock = cur->bc_private.b.firstblock = args.fsbno;
cur->bc_private.b.allocated++;
ip->i_d.di_nblocks++;
@@ -817,13 +809,8 @@ try_another_ag:
*/
abp->b_ops = &xfs_bmbt_buf_ops;
ablock = XFS_BUF_TO_BLOCK(abp);
- if (xfs_sb_version_hascrc(&mp->m_sb))
- xfs_btree_init_block_int(mp, ablock, abp->b_bn,
- XFS_BMAP_CRC_MAGIC, 0, 0, ip->i_ino,
- XFS_BTREE_LONG_PTRS | XFS_BTREE_CRC_BLOCKS);
- else
- xfs_btree_init_block_int(mp, ablock, abp->b_bn,
- XFS_BMAP_MAGIC, 0, 0, ip->i_ino,
+ xfs_btree_init_block_int(mp, ablock, abp->b_bn,
+ XFS_BTNUM_BMAP, 0, 0, ip->i_ino,
XFS_BTREE_LONG_PTRS);
arp = XFS_BMBT_REC_ADDR(mp, ablock, 1);
@@ -1278,7 +1265,6 @@ xfs_bmap_read_extents(
/* REFERENCED */
xfs_extnum_t room; /* number of entries there's room for */
- bno = NULLFSBLOCK;
mp = ip->i_mount;
ifp = XFS_IFORK_PTR(ip, whichfork);
exntf = (whichfork != XFS_DATA_FORK) ? XFS_EXTFMT_NOSTATE :
@@ -1291,9 +1277,7 @@ xfs_bmap_read_extents(
ASSERT(level > 0);
pp = XFS_BMAP_BROOT_PTR_ADDR(mp, block, 1, ifp->if_broot_bytes);
bno = be64_to_cpu(*pp);
- ASSERT(bno != NULLFSBLOCK);
- ASSERT(XFS_FSB_TO_AGNO(mp, bno) < mp->m_sb.sb_agcount);
- ASSERT(XFS_FSB_TO_AGBNO(mp, bno) < mp->m_sb.sb_agblocks);
+
/*
* Go down the tree until leaf level is reached, following the first
* pointer (leftmost) at each level.
@@ -1864,6 +1848,7 @@ xfs_bmap_add_extent_delay_real(
*/
trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);
xfs_bmbt_set_startblock(ep, new->br_startblock);
+ xfs_bmbt_set_state(ep, new->br_state);
trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);
(*nextents)++;
@@ -2202,6 +2187,7 @@ STATIC int /* error */
xfs_bmap_add_extent_unwritten_real(
struct xfs_trans *tp,
xfs_inode_t *ip, /* incore inode pointer */
+ int whichfork,
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 */
@@ -2221,12 +2207,14 @@ 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 */
- struct xfs_mount *mp = tp->t_mountp;
+ struct xfs_mount *mp = ip->i_mount;
*logflagsp = 0;
cur = *curp;
- ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
+ ifp = XFS_IFORK_PTR(ip, whichfork);
+ if (whichfork == XFS_COW_FORK)
+ state |= BMAP_COWFORK;
ASSERT(*idx >= 0);
ASSERT(*idx <= xfs_iext_count(ifp));
@@ -2285,7 +2273,7 @@ xfs_bmap_add_extent_unwritten_real(
* Don't set contiguous if the combined extent would be too large.
* Also check for all-three-contiguous being too large.
*/
- if (*idx < xfs_iext_count(&ip->i_df) - 1) {
+ if (*idx < xfs_iext_count(ifp) - 1) {
state |= BMAP_RIGHT_VALID;
xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx + 1), &RIGHT);
if (isnullstartblock(RIGHT.br_startblock))
@@ -2325,7 +2313,8 @@ xfs_bmap_add_extent_unwritten_real(
trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
xfs_iext_remove(ip, *idx + 1, 2, state);
- ip->i_d.di_nextents -= 2;
+ XFS_IFORK_NEXT_SET(ip, whichfork,
+ XFS_IFORK_NEXTENTS(ip, whichfork) - 2);
if (cur == NULL)
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
@@ -2368,7 +2357,8 @@ xfs_bmap_add_extent_unwritten_real(
trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
xfs_iext_remove(ip, *idx + 1, 1, state);
- ip->i_d.di_nextents--;
+ XFS_IFORK_NEXT_SET(ip, whichfork,
+ XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
if (cur == NULL)
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
@@ -2403,7 +2393,8 @@ xfs_bmap_add_extent_unwritten_real(
xfs_bmbt_set_state(ep, newext);
trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
xfs_iext_remove(ip, *idx + 1, 1, state);
- ip->i_d.di_nextents--;
+ XFS_IFORK_NEXT_SET(ip, whichfork,
+ XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
if (cur == NULL)
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
@@ -2515,7 +2506,8 @@ xfs_bmap_add_extent_unwritten_real(
trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
xfs_iext_insert(ip, *idx, 1, new, state);
- ip->i_d.di_nextents++;
+ XFS_IFORK_NEXT_SET(ip, whichfork,
+ XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
if (cur == NULL)
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
@@ -2593,7 +2585,8 @@ xfs_bmap_add_extent_unwritten_real(
++*idx;
xfs_iext_insert(ip, *idx, 1, new, state);
- ip->i_d.di_nextents++;
+ XFS_IFORK_NEXT_SET(ip, whichfork,
+ XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
if (cur == NULL)
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
@@ -2641,7 +2634,8 @@ xfs_bmap_add_extent_unwritten_real(
++*idx;
xfs_iext_insert(ip, *idx, 2, &r[0], state);
- ip->i_d.di_nextents += 2;
+ XFS_IFORK_NEXT_SET(ip, whichfork,
+ XFS_IFORK_NEXTENTS(ip, whichfork) + 2);
if (cur == NULL)
rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
else {
@@ -2695,17 +2689,17 @@ xfs_bmap_add_extent_unwritten_real(
}
/* update reverse mappings */
- error = xfs_rmap_convert_extent(mp, dfops, ip, XFS_DATA_FORK, new);
+ error = xfs_rmap_convert_extent(mp, dfops, ip, whichfork, new);
if (error)
goto done;
/* convert to a btree if necessary */
- if (xfs_bmap_needs_btree(ip, XFS_DATA_FORK)) {
+ if (xfs_bmap_needs_btree(ip, whichfork)) {
int tmp_logflags; /* partial log flag return val */
ASSERT(cur == NULL);
error = xfs_bmap_extents_to_btree(tp, ip, first, dfops, &cur,
- 0, &tmp_logflags, XFS_DATA_FORK);
+ 0, &tmp_logflags, whichfork);
*logflagsp |= tmp_logflags;
if (error)
goto done;
@@ -2717,7 +2711,7 @@ xfs_bmap_add_extent_unwritten_real(
*curp = cur;
}
- xfs_bmap_check_leaf_extents(*curp, ip, XFS_DATA_FORK);
+ xfs_bmap_check_leaf_extents(*curp, ip, whichfork);
done:
*logflagsp |= rval;
return error;
@@ -2809,7 +2803,8 @@ xfs_bmap_add_extent_hole_delay(
oldlen = startblockval(left.br_startblock) +
startblockval(new->br_startblock) +
startblockval(right.br_startblock);
- newlen = xfs_bmap_worst_indlen(ip, temp);
+ newlen = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
+ oldlen);
xfs_bmbt_set_startblock(xfs_iext_get_ext(ifp, *idx),
nullstartblock((int)newlen));
trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
@@ -2830,7 +2825,8 @@ xfs_bmap_add_extent_hole_delay(
xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, *idx), temp);
oldlen = startblockval(left.br_startblock) +
startblockval(new->br_startblock);
- newlen = xfs_bmap_worst_indlen(ip, temp);
+ newlen = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
+ oldlen);
xfs_bmbt_set_startblock(xfs_iext_get_ext(ifp, *idx),
nullstartblock((int)newlen));
trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
@@ -2846,7 +2842,8 @@ xfs_bmap_add_extent_hole_delay(
temp = new->br_blockcount + right.br_blockcount;
oldlen = startblockval(new->br_startblock) +
startblockval(right.br_startblock);
- newlen = xfs_bmap_worst_indlen(ip, temp);
+ newlen = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
+ oldlen);
xfs_bmbt_set_allf(xfs_iext_get_ext(ifp, *idx),
new->br_startoff,
nullstartblock((int)newlen), temp, right.br_state);
@@ -2899,13 +2896,14 @@ xfs_bmap_add_extent_hole_real(
ASSERT(!isnullstartblock(new->br_startblock));
ASSERT(!bma->cur ||
!(bma->cur->bc_private.b.flags & XFS_BTCUR_BPRV_WASDEL));
- ASSERT(whichfork != XFS_COW_FORK);
XFS_STATS_INC(mp, xs_add_exlist);
state = 0;
if (whichfork == XFS_ATTR_FORK)
state |= BMAP_ATTRFORK;
+ if (whichfork == XFS_COW_FORK)
+ state |= BMAP_COWFORK;
/*
* Check and set flags if this segment has a left neighbor.
@@ -3629,7 +3627,7 @@ xfs_bmap_btalloc(
align = xfs_get_cowextsz_hint(ap->ip);
else if (xfs_alloc_is_userdata(ap->datatype))
align = xfs_get_extsz_hint(ap->ip);
- if (unlikely(align)) {
+ if (align) {
error = xfs_bmap_extsize_align(mp, &ap->got, &ap->prev,
align, 0, ap->eof, 0, ap->conv,
&ap->offset, &ap->length);
@@ -3701,7 +3699,7 @@ xfs_bmap_btalloc(
args.minlen = ap->minlen;
}
/* apply extent size hints if obtained earlier */
- if (unlikely(align)) {
+ if (align) {
args.prod = align;
if ((args.mod = (xfs_extlen_t)do_mod(ap->offset, args.prod)))
args.mod = (xfs_extlen_t)(args.prod - args.mod);
@@ -3812,7 +3810,6 @@ xfs_bmap_btalloc(
args.fsbno = 0;
args.type = XFS_ALLOCTYPE_FIRST_AG;
args.total = ap->minlen;
- args.minleft = 0;
if ((error = xfs_alloc_vextent(&args)))
return error;
ap->dfops->dop_low = true;
@@ -3823,17 +3820,13 @@ xfs_bmap_btalloc(
* the first block that was allocated.
*/
ASSERT(*ap->firstblock == NULLFSBLOCK ||
- XFS_FSB_TO_AGNO(mp, *ap->firstblock) ==
- XFS_FSB_TO_AGNO(mp, args.fsbno) ||
- (ap->dfops->dop_low &&
- XFS_FSB_TO_AGNO(mp, *ap->firstblock) <
- XFS_FSB_TO_AGNO(mp, args.fsbno)));
+ XFS_FSB_TO_AGNO(mp, *ap->firstblock) <=
+ XFS_FSB_TO_AGNO(mp, args.fsbno));
ap->blkno = args.fsbno;
if (*ap->firstblock == NULLFSBLOCK)
*ap->firstblock = args.fsbno;
- ASSERT(nullfb || fb_agno == args.agno ||
- (ap->dfops->dop_low && fb_agno < args.agno));
+ ASSERT(nullfb || fb_agno <= args.agno);
ap->length = args.len;
if (!(ap->flags & XFS_BMAPI_COWFORK))
ap->ip->i_d.di_nblocks += args.len;
@@ -4344,8 +4337,6 @@ xfs_bmapi_allocate(
if (error)
return error;
- if (bma->dfops->dop_low)
- bma->minleft = 0;
if (bma->cur)
bma->cur->bc_private.b.firstblock = *bma->firstblock;
if (bma->blkno == NULLFSBLOCK)
@@ -4371,10 +4362,16 @@ xfs_bmapi_allocate(
bma->got.br_state = XFS_EXT_NORM;
/*
- * A wasdelay extent has been initialized, so shouldn't be flagged
- * as unwritten.
+ * In the data fork, a wasdelay extent has been initialized, so
+ * shouldn't be flagged as unwritten.
+ *
+ * For the cow fork, however, we convert delalloc reservations
+ * (extents allocated for speculative preallocation) to
+ * allocated unwritten extents, and only convert the unwritten
+ * extents to real extents when we're about to write the data.
*/
- if (!bma->wasdel && (bma->flags & XFS_BMAPI_PREALLOC) &&
+ if ((!bma->wasdel || (bma->flags & XFS_BMAPI_COWFORK)) &&
+ (bma->flags & XFS_BMAPI_PREALLOC) &&
xfs_sb_version_hasextflgbit(&mp->m_sb))
bma->got.br_state = XFS_EXT_UNWRITTEN;
@@ -4425,8 +4422,6 @@ xfs_bmapi_convert_unwritten(
(XFS_BMAPI_PREALLOC | XFS_BMAPI_CONVERT))
return 0;
- ASSERT(whichfork != XFS_COW_FORK);
-
/*
* Modify (by adding) the state flag, if writing.
*/
@@ -4451,8 +4446,8 @@ xfs_bmapi_convert_unwritten(
return error;
}
- error = xfs_bmap_add_extent_unwritten_real(bma->tp, bma->ip, &bma->idx,
- &bma->cur, mval, bma->firstblock, bma->dfops,
+ error = xfs_bmap_add_extent_unwritten_real(bma->tp, bma->ip, whichfork,
+ &bma->idx, &bma->cur, mval, bma->firstblock, bma->dfops,
&tmp_logflags);
/*
* Log the inode core unconditionally in the unwritten extent conversion
@@ -4461,8 +4456,12 @@ xfs_bmapi_convert_unwritten(
* in the transaction for the sake of fsync(), even if nothing has
* changed, because fsync() will not force the log for this transaction
* unless it sees the inode pinned.
+ *
+ * Note: If we're only converting cow fork extents, there aren't
+ * any on-disk updates to make, so we don't need to log anything.
*/
- bma->logflags |= tmp_logflags | XFS_ILOG_CORE;
+ if (whichfork != XFS_COW_FORK)
+ bma->logflags |= tmp_logflags | XFS_ILOG_CORE;
if (error)
return error;
@@ -4517,8 +4516,6 @@ xfs_bmapi_write(
int n; /* current extent index */
xfs_fileoff_t obno; /* old block number (offset) */
int whichfork; /* data or attr fork */
- char inhole; /* current location is hole in file */
- char wasdelay; /* old extent was delayed */
#ifdef DEBUG
xfs_fileoff_t orig_bno; /* original block number value */
@@ -4538,15 +4535,15 @@ xfs_bmapi_write(
ASSERT(*nmap >= 1);
ASSERT(*nmap <= XFS_BMAP_MAX_NMAP);
ASSERT(!(flags & XFS_BMAPI_IGSTATE));
- ASSERT(tp != NULL);
+ ASSERT(tp != NULL ||
+ (flags & (XFS_BMAPI_CONVERT | XFS_BMAPI_COWFORK)) ==
+ (XFS_BMAPI_CONVERT | XFS_BMAPI_COWFORK));
ASSERT(len > 0);
ASSERT(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_LOCAL);
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(!(flags & XFS_BMAPI_REMAP) || whichfork == XFS_DATA_FORK);
ASSERT(!(flags & XFS_BMAPI_PREALLOC) || !(flags & XFS_BMAPI_REMAP));
ASSERT(!(flags & XFS_BMAPI_CONVERT) || !(flags & XFS_BMAPI_REMAP));
- ASSERT(!(flags & XFS_BMAPI_PREALLOC) || whichfork != XFS_COW_FORK);
- ASSERT(!(flags & XFS_BMAPI_CONVERT) || whichfork != XFS_COW_FORK);
/* zeroing is for currently only for data extents, not metadata */
ASSERT((flags & (XFS_BMAPI_METADATA | XFS_BMAPI_ZERO)) !=
@@ -4606,22 +4603,44 @@ xfs_bmapi_write(
bma.firstblock = firstblock;
while (bno < end && n < *nmap) {
- inhole = eof || bma.got.br_startoff > bno;
- wasdelay = !inhole && isnullstartblock(bma.got.br_startblock);
+ bool need_alloc = false, wasdelay = false;
- /*
- * Make sure we only reflink into a hole.
- */
- if (flags & XFS_BMAPI_REMAP)
- ASSERT(inhole);
- if (flags & XFS_BMAPI_COWFORK)
- ASSERT(!inhole);
+ /* in hole or beyoned EOF? */
+ if (eof || bma.got.br_startoff > bno) {
+ if (flags & XFS_BMAPI_DELALLOC) {
+ /*
+ * For the COW fork we can reasonably get a
+ * request for converting an extent that races
+ * with other threads already having converted
+ * part of it, as there converting COW to
+ * regular blocks is not protected using the
+ * IOLOCK.
+ */
+ ASSERT(flags & XFS_BMAPI_COWFORK);
+ if (!(flags & XFS_BMAPI_COWFORK)) {
+ error = -EIO;
+ goto error0;
+ }
+
+ if (eof || bno >= end)
+ break;
+ } else {
+ need_alloc = true;
+ }
+ } else {
+ /*
+ * Make sure we only reflink into a hole.
+ */
+ ASSERT(!(flags & XFS_BMAPI_REMAP));
+ if (isnullstartblock(bma.got.br_startblock))
+ wasdelay = true;
+ }
/*
* First, deal with the hole before the allocated space
* that we found, if any.
*/
- if (inhole || wasdelay) {
+ if (need_alloc || wasdelay) {
bma.eof = eof;
bma.conv = !!(flags & XFS_BMAPI_CONVERT);
bma.wasdel = wasdelay;
@@ -4729,13 +4748,9 @@ error0:
if (bma.cur) {
if (!error) {
ASSERT(*firstblock == NULLFSBLOCK ||
- XFS_FSB_TO_AGNO(mp, *firstblock) ==
+ XFS_FSB_TO_AGNO(mp, *firstblock) <=
XFS_FSB_TO_AGNO(mp,
- bma.cur->bc_private.b.firstblock) ||
- (dfops->dop_low &&
- XFS_FSB_TO_AGNO(mp, *firstblock) <
- XFS_FSB_TO_AGNO(mp,
- bma.cur->bc_private.b.firstblock)));
+ bma.cur->bc_private.b.firstblock));
*firstblock = bma.cur->bc_private.b.firstblock;
}
xfs_btree_del_cursor(bma.cur,
@@ -4770,34 +4785,59 @@ xfs_bmap_split_indlen(
xfs_filblks_t len2 = *indlen2;
xfs_filblks_t nres = len1 + len2; /* new total res. */
xfs_filblks_t stolen = 0;
+ xfs_filblks_t resfactor;
/*
* Steal as many blocks as we can to try and satisfy the worst case
* indlen for both new extents.
*/
- while (nres > ores && avail) {
- nres--;
- avail--;
- stolen++;
- }
+ if (ores < nres && avail)
+ stolen = XFS_FILBLKS_MIN(nres - ores, avail);
+ ores += stolen;
+
+ /* nothing else to do if we've satisfied the new reservation */
+ if (ores >= nres)
+ return stolen;
+
+ /*
+ * We can't meet the total required reservation for the two extents.
+ * Calculate the percent of the overall shortage between both extents
+ * and apply this percentage to each of the requested indlen values.
+ * This distributes the shortage fairly and reduces the chances that one
+ * of the two extents is left with nothing when extents are repeatedly
+ * split.
+ */
+ resfactor = (ores * 100);
+ do_div(resfactor, nres);
+ len1 *= resfactor;
+ do_div(len1, 100);
+ len2 *= resfactor;
+ do_div(len2, 100);
+ ASSERT(len1 + len2 <= ores);
+ ASSERT(len1 < *indlen1 && len2 < *indlen2);
/*
- * The only blocks available are those reserved for the original
- * extent and what we can steal from the extent being removed.
- * If this still isn't enough to satisfy the combined
- * requirements for the two new extents, skim blocks off of each
- * of the new reservations until they match what is available.
+ * Hand out the remainder to each extent. If one of the two reservations
+ * is zero, we want to make sure that one gets a block first. The loop
+ * below starts with len1, so hand len2 a block right off the bat if it
+ * is zero.
*/
- while (nres > ores) {
- if (len1) {
- len1--;
- nres--;
+ ores -= (len1 + len2);
+ ASSERT((*indlen1 - len1) + (*indlen2 - len2) >= ores);
+ if (ores && !len2 && *indlen2) {
+ len2++;
+ ores--;
+ }
+ while (ores) {
+ if (len1 < *indlen1) {
+ len1++;
+ ores--;
}
- if (nres == ores)
+ if (!ores)
break;
- if (len2) {
- len2--;
- nres--;
+ if (len2 < *indlen2) {
+ len2++;
+ ores--;
}
}
@@ -5539,8 +5579,8 @@ __xfs_bunmapi(
}
del.br_state = XFS_EXT_UNWRITTEN;
error = xfs_bmap_add_extent_unwritten_real(tp, ip,
- &lastx, &cur, &del, firstblock, dfops,
- &logflags);
+ whichfork, &lastx, &cur, &del,
+ firstblock, dfops, &logflags);
if (error)
goto error0;
goto nodelete;
@@ -5593,8 +5633,9 @@ __xfs_bunmapi(
prev.br_state = XFS_EXT_UNWRITTEN;
lastx--;
error = xfs_bmap_add_extent_unwritten_real(tp,
- ip, &lastx, &cur, &prev,
- firstblock, dfops, &logflags);
+ ip, whichfork, &lastx, &cur,
+ &prev, firstblock, dfops,
+ &logflags);
if (error)
goto error0;
goto nodelete;
@@ -5602,8 +5643,9 @@ __xfs_bunmapi(
ASSERT(del.br_state == XFS_EXT_NORM);
del.br_state = XFS_EXT_UNWRITTEN;
error = xfs_bmap_add_extent_unwritten_real(tp,
- ip, &lastx, &cur, &del,
- firstblock, dfops, &logflags);
+ ip, whichfork, &lastx, &cur,
+ &del, firstblock, dfops,
+ &logflags);
if (error)
goto error0;
goto nodelete;
diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h
index cecd094404cc..cdef87db5262 100644
--- a/fs/xfs/libxfs/xfs_bmap.h
+++ b/fs/xfs/libxfs/xfs_bmap.h
@@ -110,6 +110,9 @@ struct xfs_extent_free_item
/* Map something in the CoW fork. */
#define XFS_BMAPI_COWFORK 0x200
+/* Only convert delalloc space, don't allocate entirely new extents */
+#define XFS_BMAPI_DELALLOC 0x400
+
#define XFS_BMAPI_FLAGS \
{ XFS_BMAPI_ENTIRE, "ENTIRE" }, \
{ XFS_BMAPI_METADATA, "METADATA" }, \
@@ -120,7 +123,8 @@ struct xfs_extent_free_item
{ XFS_BMAPI_CONVERT, "CONVERT" }, \
{ XFS_BMAPI_ZERO, "ZERO" }, \
{ XFS_BMAPI_REMAP, "REMAP" }, \
- { XFS_BMAPI_COWFORK, "COWFORK" }
+ { XFS_BMAPI_COWFORK, "COWFORK" }, \
+ { XFS_BMAPI_DELALLOC, "DELALLOC" }
static inline int xfs_bmapi_aflag(int w)
diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c
index d6330c297ca0..f93072b58a58 100644
--- a/fs/xfs/libxfs/xfs_bmap_btree.c
+++ b/fs/xfs/libxfs/xfs_bmap_btree.c
@@ -71,15 +71,9 @@ xfs_bmdr_to_bmbt(
xfs_bmbt_key_t *tkp;
__be64 *tpp;
- if (xfs_sb_version_hascrc(&mp->m_sb))
- xfs_btree_init_block_int(mp, rblock, XFS_BUF_DADDR_NULL,
- XFS_BMAP_CRC_MAGIC, 0, 0, ip->i_ino,
- XFS_BTREE_LONG_PTRS | XFS_BTREE_CRC_BLOCKS);
- else
- xfs_btree_init_block_int(mp, rblock, XFS_BUF_DADDR_NULL,
- XFS_BMAP_MAGIC, 0, 0, ip->i_ino,
+ xfs_btree_init_block_int(mp, rblock, XFS_BUF_DADDR_NULL,
+ XFS_BTNUM_BMAP, 0, 0, ip->i_ino,
XFS_BTREE_LONG_PTRS);
-
rblock->bb_level = dblock->bb_level;
ASSERT(be16_to_cpu(rblock->bb_level) > 0);
rblock->bb_numrecs = dblock->bb_numrecs;
@@ -502,12 +496,11 @@ try_another_ag:
if (args.fsbno == NULLFSBLOCK && args.minleft) {
/*
* Could not find an AG with enough free space to satisfy
- * a full btree split. Try again without minleft and if
+ * a full btree split. Try again and if
* successful activate the lowspace algorithm.
*/
args.fsbno = 0;
args.type = XFS_ALLOCTYPE_FIRST_AG;
- args.minleft = 0;
error = xfs_alloc_vextent(&args);
if (error)
goto error0;
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c
index 21e6a6ab6b9a..c3decedc9455 100644
--- a/fs/xfs/libxfs/xfs_btree.c
+++ b/fs/xfs/libxfs/xfs_btree.c
@@ -50,8 +50,18 @@ static const __uint32_t xfs_magics[2][XFS_BTNUM_MAX] = {
XFS_BMAP_CRC_MAGIC, XFS_IBT_CRC_MAGIC, XFS_FIBT_CRC_MAGIC,
XFS_REFC_CRC_MAGIC }
};
-#define xfs_btree_magic(cur) \
- xfs_magics[!!((cur)->bc_flags & XFS_BTREE_CRC_BLOCKS)][cur->bc_btnum]
+
+__uint32_t
+xfs_btree_magic(
+ int crc,
+ xfs_btnum_t btnum)
+{
+ __uint32_t magic = xfs_magics[crc][btnum];
+
+ /* Ensure we asked for crc for crc-only magics. */
+ ASSERT(magic != 0);
+ return magic;
+}
STATIC int /* error (0 or EFSCORRUPTED) */
xfs_btree_check_lblock(
@@ -62,10 +72,13 @@ xfs_btree_check_lblock(
{
int lblock_ok = 1; /* block passes checks */
struct xfs_mount *mp; /* file system mount point */
+ xfs_btnum_t btnum = cur->bc_btnum;
+ int crc;
mp = cur->bc_mp;
+ crc = xfs_sb_version_hascrc(&mp->m_sb);
- if (xfs_sb_version_hascrc(&mp->m_sb)) {
+ if (crc) {
lblock_ok = lblock_ok &&
uuid_equal(&block->bb_u.l.bb_uuid,
&mp->m_sb.sb_meta_uuid) &&
@@ -74,7 +87,7 @@ xfs_btree_check_lblock(
}
lblock_ok = lblock_ok &&
- be32_to_cpu(block->bb_magic) == xfs_btree_magic(cur) &&
+ be32_to_cpu(block->bb_magic) == xfs_btree_magic(crc, btnum) &&
be16_to_cpu(block->bb_level) == level &&
be16_to_cpu(block->bb_numrecs) <=
cur->bc_ops->get_maxrecs(cur, level) &&
@@ -110,13 +123,16 @@ xfs_btree_check_sblock(
struct xfs_agf *agf; /* ag. freespace structure */
xfs_agblock_t agflen; /* native ag. freespace length */
int sblock_ok = 1; /* block passes checks */
+ xfs_btnum_t btnum = cur->bc_btnum;
+ int crc;
mp = cur->bc_mp;
+ crc = xfs_sb_version_hascrc(&mp->m_sb);
agbp = cur->bc_private.a.agbp;
agf = XFS_BUF_TO_AGF(agbp);
agflen = be32_to_cpu(agf->agf_length);
- if (xfs_sb_version_hascrc(&mp->m_sb)) {
+ if (crc) {
sblock_ok = sblock_ok &&
uuid_equal(&block->bb_u.s.bb_uuid,
&mp->m_sb.sb_meta_uuid) &&
@@ -125,7 +141,7 @@ xfs_btree_check_sblock(
}
sblock_ok = sblock_ok &&
- be32_to_cpu(block->bb_magic) == xfs_btree_magic(cur) &&
+ be32_to_cpu(block->bb_magic) == xfs_btree_magic(crc, btnum) &&
be16_to_cpu(block->bb_level) == level &&
be16_to_cpu(block->bb_numrecs) <=
cur->bc_ops->get_maxrecs(cur, level) &&
@@ -810,7 +826,8 @@ xfs_btree_read_bufl(
xfs_daddr_t d; /* real disk block address */
int error;
- ASSERT(fsbno != NULLFSBLOCK);
+ if (!XFS_FSB_SANITY_CHECK(mp, fsbno))
+ return -EFSCORRUPTED;
d = XFS_FSB_TO_DADDR(mp, fsbno);
error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, d,
mp->m_bsize, lock, &bp, ops);
@@ -1084,12 +1101,15 @@ xfs_btree_init_block_int(
struct xfs_mount *mp,
struct xfs_btree_block *buf,
xfs_daddr_t blkno,
- __u32 magic,
+ xfs_btnum_t btnum,
__u16 level,
__u16 numrecs,
__u64 owner,
unsigned int flags)
{
+ int crc = xfs_sb_version_hascrc(&mp->m_sb);
+ __u32 magic = xfs_btree_magic(crc, btnum);
+
buf->bb_magic = cpu_to_be32(magic);
buf->bb_level = cpu_to_be16(level);
buf->bb_numrecs = cpu_to_be16(numrecs);
@@ -1097,7 +1117,7 @@ xfs_btree_init_block_int(
if (flags & XFS_BTREE_LONG_PTRS) {
buf->bb_u.l.bb_leftsib = cpu_to_be64(NULLFSBLOCK);
buf->bb_u.l.bb_rightsib = cpu_to_be64(NULLFSBLOCK);
- if (flags & XFS_BTREE_CRC_BLOCKS) {
+ if (crc) {
buf->bb_u.l.bb_blkno = cpu_to_be64(blkno);
buf->bb_u.l.bb_owner = cpu_to_be64(owner);
uuid_copy(&buf->bb_u.l.bb_uuid, &mp->m_sb.sb_meta_uuid);
@@ -1110,7 +1130,7 @@ xfs_btree_init_block_int(
buf->bb_u.s.bb_leftsib = cpu_to_be32(NULLAGBLOCK);
buf->bb_u.s.bb_rightsib = cpu_to_be32(NULLAGBLOCK);
- if (flags & XFS_BTREE_CRC_BLOCKS) {
+ if (crc) {
buf->bb_u.s.bb_blkno = cpu_to_be64(blkno);
buf->bb_u.s.bb_owner = cpu_to_be32(__owner);
uuid_copy(&buf->bb_u.s.bb_uuid, &mp->m_sb.sb_meta_uuid);
@@ -1123,14 +1143,14 @@ void
xfs_btree_init_block(
struct xfs_mount *mp,
struct xfs_buf *bp,
- __u32 magic,
+ xfs_btnum_t btnum,
__u16 level,
__u16 numrecs,
__u64 owner,
unsigned int flags)
{
xfs_btree_init_block_int(mp, XFS_BUF_TO_BLOCK(bp), bp->b_bn,
- magic, level, numrecs, owner, flags);
+ btnum, level, numrecs, owner, flags);
}
STATIC void
@@ -1140,7 +1160,7 @@ xfs_btree_init_block_cur(
int level,
int numrecs)
{
- __u64 owner;
+ __u64 owner;
/*
* we can pull the owner from the cursor right now as the different
@@ -1154,7 +1174,7 @@ xfs_btree_init_block_cur(
owner = cur->bc_private.a.agno;
xfs_btree_init_block_int(cur->bc_mp, XFS_BUF_TO_BLOCK(bp), bp->b_bn,
- xfs_btree_magic(cur), level, numrecs,
+ cur->bc_btnum, level, numrecs,
owner, cur->bc_flags);
}
diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h
index b69b947c4c1b..4bb62580a7fd 100644
--- a/fs/xfs/libxfs/xfs_btree.h
+++ b/fs/xfs/libxfs/xfs_btree.h
@@ -76,6 +76,8 @@ union xfs_btree_rec {
#define XFS_BTNUM_RMAP ((xfs_btnum_t)XFS_BTNUM_RMAPi)
#define XFS_BTNUM_REFC ((xfs_btnum_t)XFS_BTNUM_REFCi)
+__uint32_t xfs_btree_magic(int crc, xfs_btnum_t btnum);
+
/*
* For logging record fields.
*/
@@ -378,7 +380,7 @@ void
xfs_btree_init_block(
struct xfs_mount *mp,
struct xfs_buf *bp,
- __u32 magic,
+ xfs_btnum_t btnum,
__u16 level,
__u16 numrecs,
__u64 owner,
@@ -389,7 +391,7 @@ xfs_btree_init_block_int(
struct xfs_mount *mp,
struct xfs_btree_block *buf,
xfs_daddr_t blkno,
- __u32 magic,
+ xfs_btnum_t btnum,
__u16 level,
__u16 numrecs,
__u64 owner,
@@ -456,7 +458,7 @@ static inline int xfs_btree_get_level(struct xfs_btree_block *block)
#define XFS_FILBLKS_MAX(a,b) max_t(xfs_filblks_t, (a), (b))
#define XFS_FSB_SANITY_CHECK(mp,fsb) \
- (XFS_FSB_TO_AGNO(mp, fsb) < mp->m_sb.sb_agcount && \
+ (fsb && XFS_FSB_TO_AGNO(mp, fsb) < mp->m_sb.sb_agcount && \
XFS_FSB_TO_AGBNO(mp, fsb) < mp->m_sb.sb_agblocks)
/*
diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c
index f2dc1a950c85..1bdf2888295b 100644
--- a/fs/xfs/libxfs/xfs_da_btree.c
+++ b/fs/xfs/libxfs/xfs_da_btree.c
@@ -2633,7 +2633,7 @@ out_free:
/*
* Readahead the dir/attr block.
*/
-xfs_daddr_t
+int
xfs_da_reada_buf(
struct xfs_inode *dp,
xfs_dablk_t bno,
@@ -2664,7 +2664,5 @@ out_free:
if (mapp != &map)
kmem_free(mapp);
- if (error)
- return -1;
- return mappedbno;
+ return error;
}
diff --git a/fs/xfs/libxfs/xfs_da_btree.h b/fs/xfs/libxfs/xfs_da_btree.h
index 98c75cbe6ac2..4e29cb6a3627 100644
--- a/fs/xfs/libxfs/xfs_da_btree.h
+++ b/fs/xfs/libxfs/xfs_da_btree.h
@@ -201,7 +201,7 @@ int xfs_da_read_buf(struct xfs_trans *trans, struct xfs_inode *dp,
xfs_dablk_t bno, xfs_daddr_t mappedbno,
struct xfs_buf **bpp, int whichfork,
const struct xfs_buf_ops *ops);
-xfs_daddr_t xfs_da_reada_buf(struct xfs_inode *dp, xfs_dablk_t bno,
+int xfs_da_reada_buf(struct xfs_inode *dp, xfs_dablk_t bno,
xfs_daddr_t mapped_bno, int whichfork,
const struct xfs_buf_ops *ops);
int xfs_da_shrink_inode(xfs_da_args_t *args, xfs_dablk_t dead_blkno,
diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c
index c58d72c220f5..2f389d366e93 100644
--- a/fs/xfs/libxfs/xfs_dir2.c
+++ b/fs/xfs/libxfs/xfs_dir2.c
@@ -36,21 +36,29 @@
struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR };
/*
- * @mode, if set, indicates that the type field needs to be set up.
- * This uses the transformation from file mode to DT_* as defined in linux/fs.h
- * for file type specification. This will be propagated into the directory
- * structure if appropriate for the given operation and filesystem config.
+ * Convert inode mode to directory entry filetype
*/
-const unsigned char xfs_mode_to_ftype[S_IFMT >> S_SHIFT] = {
- [0] = XFS_DIR3_FT_UNKNOWN,
- [S_IFREG >> S_SHIFT] = XFS_DIR3_FT_REG_FILE,
- [S_IFDIR >> S_SHIFT] = XFS_DIR3_FT_DIR,
- [S_IFCHR >> S_SHIFT] = XFS_DIR3_FT_CHRDEV,
- [S_IFBLK >> S_SHIFT] = XFS_DIR3_FT_BLKDEV,
- [S_IFIFO >> S_SHIFT] = XFS_DIR3_FT_FIFO,
- [S_IFSOCK >> S_SHIFT] = XFS_DIR3_FT_SOCK,
- [S_IFLNK >> S_SHIFT] = XFS_DIR3_FT_SYMLINK,
-};
+unsigned char xfs_mode_to_ftype(int mode)
+{
+ switch (mode & S_IFMT) {
+ case S_IFREG:
+ return XFS_DIR3_FT_REG_FILE;
+ case S_IFDIR:
+ return XFS_DIR3_FT_DIR;
+ case S_IFCHR:
+ return XFS_DIR3_FT_CHRDEV;
+ case S_IFBLK:
+ return XFS_DIR3_FT_BLKDEV;
+ case S_IFIFO:
+ return XFS_DIR3_FT_FIFO;
+ case S_IFSOCK:
+ return XFS_DIR3_FT_SOCK;
+ case S_IFLNK:
+ return XFS_DIR3_FT_SYMLINK;
+ default:
+ return XFS_DIR3_FT_UNKNOWN;
+ }
+}
/*
* ASCII case-insensitive (ie. A-Z) support for directories that was
@@ -631,7 +639,8 @@ xfs_dir2_isblock(
if ((rval = xfs_bmap_last_offset(args->dp, &last, XFS_DATA_FORK)))
return rval;
rval = XFS_FSB_TO_B(args->dp->i_mount, last) == args->geo->blksize;
- ASSERT(rval == 0 || args->dp->i_d.di_size == args->geo->blksize);
+ if (rval != 0 && args->dp->i_d.di_size != args->geo->blksize)
+ return -EFSCORRUPTED;
*vp = rval;
return 0;
}
diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h
index 0197590fa7d7..d6e6d9d16f6c 100644
--- a/fs/xfs/libxfs/xfs_dir2.h
+++ b/fs/xfs/libxfs/xfs_dir2.h
@@ -18,6 +18,9 @@
#ifndef __XFS_DIR2_H__
#define __XFS_DIR2_H__
+#include "xfs_da_format.h"
+#include "xfs_da_btree.h"
+
struct xfs_defer_ops;
struct xfs_da_args;
struct xfs_inode;
@@ -32,10 +35,9 @@ struct xfs_dir2_data_unused;
extern struct xfs_name xfs_name_dotdot;
/*
- * directory filetype conversion tables.
+ * Convert inode mode to directory entry filetype
*/
-#define S_SHIFT 12
-extern const unsigned char xfs_mode_to_ftype[];
+extern unsigned char xfs_mode_to_ftype(int mode);
/*
* directory operations vector for encode/decode routines
diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c
index 75a557432d0f..bbd1238852b3 100644
--- a/fs/xfs/libxfs/xfs_dir2_node.c
+++ b/fs/xfs/libxfs/xfs_dir2_node.c
@@ -155,6 +155,42 @@ const struct xfs_buf_ops xfs_dir3_free_buf_ops = {
.verify_write = xfs_dir3_free_write_verify,
};
+/* Everything ok in the free block header? */
+static bool
+xfs_dir3_free_header_check(
+ struct xfs_inode *dp,
+ xfs_dablk_t fbno,
+ struct xfs_buf *bp)
+{
+ struct xfs_mount *mp = dp->i_mount;
+ unsigned int firstdb;
+ int maxbests;
+
+ maxbests = dp->d_ops->free_max_bests(mp->m_dir_geo);
+ firstdb = (xfs_dir2_da_to_db(mp->m_dir_geo, fbno) -
+ xfs_dir2_byte_to_db(mp->m_dir_geo, XFS_DIR2_FREE_OFFSET)) *
+ maxbests;
+ if (xfs_sb_version_hascrc(&mp->m_sb)) {
+ struct xfs_dir3_free_hdr *hdr3 = bp->b_addr;
+
+ if (be32_to_cpu(hdr3->firstdb) != firstdb)
+ return false;
+ if (be32_to_cpu(hdr3->nvalid) > maxbests)
+ return false;
+ if (be32_to_cpu(hdr3->nvalid) < be32_to_cpu(hdr3->nused))
+ return false;
+ } else {
+ struct xfs_dir2_free_hdr *hdr = bp->b_addr;
+
+ if (be32_to_cpu(hdr->firstdb) != firstdb)
+ return false;
+ if (be32_to_cpu(hdr->nvalid) > maxbests)
+ return false;
+ if (be32_to_cpu(hdr->nvalid) < be32_to_cpu(hdr->nused))
+ return false;
+ }
+ return true;
+}
static int
__xfs_dir3_free_read(
@@ -168,11 +204,22 @@ __xfs_dir3_free_read(
err = xfs_da_read_buf(tp, dp, fbno, mappedbno, bpp,
XFS_DATA_FORK, &xfs_dir3_free_buf_ops);
+ if (err || !*bpp)
+ return err;
+
+ /* Check things that we can't do in the verifier. */
+ if (!xfs_dir3_free_header_check(dp, fbno, *bpp)) {
+ xfs_buf_ioerror(*bpp, -EFSCORRUPTED);
+ xfs_verifier_error(*bpp);
+ xfs_trans_brelse(tp, *bpp);
+ return -EFSCORRUPTED;
+ }
/* try read returns without an error or *bpp if it lands in a hole */
- if (!err && tp && *bpp)
+ if (tp)
xfs_trans_buf_set_type(tp, *bpp, XFS_BLFT_DIR_FREE_BUF);
- return err;
+
+ return 0;
}
int
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index f272abff11e1..d41ade5d293e 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -51,8 +51,7 @@ xfs_ialloc_cluster_alignment(
struct xfs_mount *mp)
{
if (xfs_sb_version_hasalign(&mp->m_sb) &&
- mp->m_sb.sb_inoalignmt >=
- XFS_B_TO_FSBT(mp, mp->m_inode_cluster_size))
+ mp->m_sb.sb_inoalignmt >= xfs_icluster_size_fsb(mp))
return mp->m_sb.sb_inoalignmt;
return 1;
}
diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c
index 0fd086d03d41..7c471881c9a6 100644
--- a/fs/xfs/libxfs/xfs_ialloc_btree.c
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.c
@@ -82,11 +82,12 @@ xfs_finobt_set_root(
}
STATIC int
-xfs_inobt_alloc_block(
+__xfs_inobt_alloc_block(
struct xfs_btree_cur *cur,
union xfs_btree_ptr *start,
union xfs_btree_ptr *new,
- int *stat)
+ int *stat,
+ enum xfs_ag_resv_type resv)
{
xfs_alloc_arg_t args; /* block allocation args */
int error; /* error return value */
@@ -103,6 +104,7 @@ xfs_inobt_alloc_block(
args.maxlen = 1;
args.prod = 1;
args.type = XFS_ALLOCTYPE_NEAR_BNO;
+ args.resv = resv;
error = xfs_alloc_vextent(&args);
if (error) {
@@ -123,6 +125,27 @@ xfs_inobt_alloc_block(
}
STATIC int
+xfs_inobt_alloc_block(
+ struct xfs_btree_cur *cur,
+ union xfs_btree_ptr *start,
+ union xfs_btree_ptr *new,
+ int *stat)
+{
+ return __xfs_inobt_alloc_block(cur, start, new, stat, XFS_AG_RESV_NONE);
+}
+
+STATIC int
+xfs_finobt_alloc_block(
+ struct xfs_btree_cur *cur,
+ union xfs_btree_ptr *start,
+ union xfs_btree_ptr *new,
+ int *stat)
+{
+ return __xfs_inobt_alloc_block(cur, start, new, stat,
+ XFS_AG_RESV_METADATA);
+}
+
+STATIC int
xfs_inobt_free_block(
struct xfs_btree_cur *cur,
struct xfs_buf *bp)
@@ -328,7 +351,7 @@ static const struct xfs_btree_ops xfs_finobt_ops = {
.dup_cursor = xfs_inobt_dup_cursor,
.set_root = xfs_finobt_set_root,
- .alloc_block = xfs_inobt_alloc_block,
+ .alloc_block = xfs_finobt_alloc_block,
.free_block = xfs_inobt_free_block,
.get_minrecs = xfs_inobt_get_minrecs,
.get_maxrecs = xfs_inobt_get_maxrecs,
@@ -480,3 +503,64 @@ xfs_inobt_rec_check_count(
return 0;
}
#endif /* DEBUG */
+
+static xfs_extlen_t
+xfs_inobt_max_size(
+ struct xfs_mount *mp)
+{
+ /* Bail out if we're uninitialized, which can happen in mkfs. */
+ if (mp->m_inobt_mxr[0] == 0)
+ return 0;
+
+ return xfs_btree_calc_size(mp, mp->m_inobt_mnr,
+ (uint64_t)mp->m_sb.sb_agblocks * mp->m_sb.sb_inopblock /
+ XFS_INODES_PER_CHUNK);
+}
+
+static int
+xfs_inobt_count_blocks(
+ struct xfs_mount *mp,
+ xfs_agnumber_t agno,
+ xfs_btnum_t btnum,
+ xfs_extlen_t *tree_blocks)
+{
+ struct xfs_buf *agbp;
+ struct xfs_btree_cur *cur;
+ int error;
+
+ error = xfs_ialloc_read_agi(mp, NULL, agno, &agbp);
+ if (error)
+ return error;
+
+ cur = xfs_inobt_init_cursor(mp, NULL, agbp, agno, btnum);
+ error = xfs_btree_count_blocks(cur, tree_blocks);
+ xfs_btree_del_cursor(cur, error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR);
+ xfs_buf_relse(agbp);
+
+ return error;
+}
+
+/*
+ * Figure out how many blocks to reserve and how many are used by this btree.
+ */
+int
+xfs_finobt_calc_reserves(
+ struct xfs_mount *mp,
+ xfs_agnumber_t agno,
+ xfs_extlen_t *ask,
+ xfs_extlen_t *used)
+{
+ xfs_extlen_t tree_len = 0;
+ int error;
+
+ if (!xfs_sb_version_hasfinobt(&mp->m_sb))
+ return 0;
+
+ error = xfs_inobt_count_blocks(mp, agno, XFS_BTNUM_FINO, &tree_len);
+ if (error)
+ return error;
+
+ *ask += xfs_inobt_max_size(mp);
+ *used += tree_len;
+ return 0;
+}
diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.h b/fs/xfs/libxfs/xfs_ialloc_btree.h
index bd88453217ce..aa81e2e63f3f 100644
--- a/fs/xfs/libxfs/xfs_ialloc_btree.h
+++ b/fs/xfs/libxfs/xfs_ialloc_btree.h
@@ -72,4 +72,7 @@ int xfs_inobt_rec_check_count(struct xfs_mount *,
#define xfs_inobt_rec_check_count(mp, rec) 0
#endif /* DEBUG */
+int xfs_finobt_calc_reserves(struct xfs_mount *mp, xfs_agnumber_t agno,
+ xfs_extlen_t *ask, xfs_extlen_t *used);
+
#endif /* __XFS_IALLOC_BTREE_H__ */
diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c
index dd483e2767f7..d93f9d918cfc 100644
--- a/fs/xfs/libxfs/xfs_inode_buf.c
+++ b/fs/xfs/libxfs/xfs_inode_buf.c
@@ -29,6 +29,7 @@
#include "xfs_icache.h"
#include "xfs_trans.h"
#include "xfs_ialloc.h"
+#include "xfs_dir2.h"
/*
* Check that none of the inode's in the buffer have a next
@@ -386,6 +387,7 @@ xfs_dinode_verify(
xfs_ino_t ino,
struct xfs_dinode *dip)
{
+ uint16_t mode;
uint16_t flags;
uint64_t flags2;
@@ -396,8 +398,12 @@ xfs_dinode_verify(
if (be64_to_cpu(dip->di_size) & (1ULL << 63))
return false;
- /* No zero-length symlinks. */
- if (S_ISLNK(be16_to_cpu(dip->di_mode)) && dip->di_size == 0)
+ mode = be16_to_cpu(dip->di_mode);
+ if (mode && xfs_mode_to_ftype(mode) == XFS_DIR3_FT_UNKNOWN)
+ return false;
+
+ /* No zero-length symlinks/dirs. */
+ if ((S_ISLNK(mode) || S_ISDIR(mode)) && dip->di_size == 0)
return false;
/* only version 3 or greater inodes are extensively verified here */
diff --git a/fs/xfs/libxfs/xfs_inode_fork.c b/fs/xfs/libxfs/xfs_inode_fork.c
index 222e103356c6..25c1e078aef6 100644
--- a/fs/xfs/libxfs/xfs_inode_fork.c
+++ b/fs/xfs/libxfs/xfs_inode_fork.c
@@ -26,6 +26,7 @@
#include "xfs_inode.h"
#include "xfs_trans.h"
#include "xfs_inode_item.h"
+#include "xfs_btree.h"
#include "xfs_bmap_btree.h"
#include "xfs_bmap.h"
#include "xfs_error.h"
@@ -429,11 +430,13 @@ xfs_iformat_btree(
/* REFERENCED */
int nrecs;
int size;
+ int level;
ifp = XFS_IFORK_PTR(ip, whichfork);
dfp = (xfs_bmdr_block_t *)XFS_DFORK_PTR(dip, whichfork);
size = XFS_BMAP_BROOT_SPACE(mp, dfp);
nrecs = be16_to_cpu(dfp->bb_numrecs);
+ level = be16_to_cpu(dfp->bb_level);
/*
* blow out if -- fork has less extents than can fit in
@@ -446,7 +449,8 @@ xfs_iformat_btree(
XFS_IFORK_MAXEXT(ip, whichfork) ||
XFS_BMDR_SPACE_CALC(nrecs) >
XFS_DFORK_SIZE(dip, mp, whichfork) ||
- XFS_IFORK_NEXTENTS(ip, whichfork) > ip->i_d.di_nblocks)) {
+ XFS_IFORK_NEXTENTS(ip, whichfork) > ip->i_d.di_nblocks) ||
+ level == 0 || level > XFS_BTREE_MAXLEVELS) {
xfs_warn(mp, "corrupt inode %Lu (btree).",
(unsigned long long) ip->i_ino);
XFS_CORRUPTION_ERROR("xfs_iformat_btree", XFS_ERRLEVEL_LOW,
@@ -497,15 +501,14 @@ xfs_iread_extents(
* We know that the size is valid (it's checked in iformat_btree)
*/
ifp->if_bytes = ifp->if_real_bytes = 0;
- ifp->if_flags |= XFS_IFEXTENTS;
xfs_iext_add(ifp, 0, nextents);
error = xfs_bmap_read_extents(tp, ip, whichfork);
if (error) {
xfs_iext_destroy(ifp);
- ifp->if_flags &= ~XFS_IFEXTENTS;
return error;
}
xfs_validate_extents(ifp, nextents, XFS_EXTFMT_INODE(ip));
+ ifp->if_flags |= XFS_IFEXTENTS;
return 0;
}
/*
diff --git a/fs/xfs/libxfs/xfs_log_recover.h b/fs/xfs/libxfs/xfs_log_recover.h
index d9f65e2d5cc8..29a01ec89dd0 100644
--- a/fs/xfs/libxfs/xfs_log_recover.h
+++ b/fs/xfs/libxfs/xfs_log_recover.h
@@ -42,7 +42,6 @@ typedef struct xlog_recover_item {
xfs_log_iovec_t *ri_buf; /* ptr to regions buffer */
} xlog_recover_item_t;
-struct xlog_tid;
typedef struct xlog_recover {
struct hlist_node r_list;
xlog_tid_t r_log_tid; /* log's transaction id */
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index 2580262e4ea0..584ec896a533 100644
--- a/fs/xfs/libxfs/xfs_sb.c
+++ b/fs/xfs/libxfs/xfs_sb.c
@@ -242,7 +242,7 @@ xfs_mount_validate_sb(
sbp->sb_blocklog < XFS_MIN_BLOCKSIZE_LOG ||
sbp->sb_blocklog > XFS_MAX_BLOCKSIZE_LOG ||
sbp->sb_blocksize != (1 << sbp->sb_blocklog) ||
- sbp->sb_dirblklog > XFS_MAX_BLOCKSIZE_LOG ||
+ sbp->sb_dirblklog + sbp->sb_blocklog > XFS_MAX_BLOCKSIZE_LOG ||
sbp->sb_inodesize < XFS_DINODE_MIN_SIZE ||
sbp->sb_inodesize > XFS_DINODE_MAX_SIZE ||
sbp->sb_inodelog < XFS_DINODE_MIN_LOG ||
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.