/*
- * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
*
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "xfs.h"
#include "xfs_fs.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
-#include "xfs_dir.h"
#include "xfs_dir2.h"
#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_bmap_btree.h"
#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_dir_sf.h"
#include "xfs_dir2_sf.h"
#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
/*
* Allocation group level functions.
*/
+static inline int
+xfs_ialloc_cluster_alignment(
+ xfs_alloc_arg_t *args)
+{
+ if (xfs_sb_version_hasalign(&args->mp->m_sb) &&
+ args->mp->m_sb.sb_inoalignmt >=
+ XFS_B_TO_FSBT(args->mp, XFS_INODE_CLUSTER_SIZE(args->mp)))
+ return args->mp->m_sb.sb_inoalignmt;
+ return 1;
+}
/*
* Allocate new inodes in the allocation group specified by agbp.
int blks_per_cluster; /* fs blocks per inode cluster */
xfs_btree_cur_t *cur; /* inode btree cursor */
xfs_daddr_t d; /* disk addr of buffer */
+ xfs_agnumber_t agno;
int error;
xfs_buf_t *fbuf; /* new free inodes' buffer */
xfs_dinode_t *free; /* new free inode structure */
int ninodes; /* num inodes per buf */
xfs_agino_t thisino; /* current inode number, for loop */
int version; /* inode version number to use */
- int isaligned; /* inode allocation at stripe unit */
+ int isaligned = 0; /* inode allocation at stripe unit */
/* boundary */
- xfs_dinode_core_t dic; /* a dinode_core to copy to new */
- /* inodes */
+ unsigned int gen;
args.tp = tp;
args.mp = tp->t_mountp;
return XFS_ERROR(ENOSPC);
args.minlen = args.maxlen = XFS_IALLOC_BLOCKS(args.mp);
/*
- * Set the alignment for the allocation.
- * If stripe alignment is turned on then align at stripe unit
- * boundary.
- * If the cluster size is smaller than a filesystem block
- * then we're doing I/O for inodes in filesystem block size pieces,
- * so don't need alignment anyway.
- */
- isaligned = 0;
- if (args.mp->m_sinoalign) {
- ASSERT(!(args.mp->m_flags & XFS_MOUNT_NOALIGN));
- args.alignment = args.mp->m_dalign;
- isaligned = 1;
- } else if (XFS_SB_VERSION_HASALIGN(&args.mp->m_sb) &&
- args.mp->m_sb.sb_inoalignmt >=
- XFS_B_TO_FSBT(args.mp, XFS_INODE_CLUSTER_SIZE(args.mp)))
- args.alignment = args.mp->m_sb.sb_inoalignmt;
- else
- args.alignment = 1;
+ * First try to allocate inodes contiguous with the last-allocated
+ * chunk of inodes. If the filesystem is striped, this will fill
+ * an entire stripe unit with inodes.
+ */
agi = XFS_BUF_TO_AGI(agbp);
- /*
- * Need to figure out where to allocate the inode blocks.
- * Ideally they should be spaced out through the a.g.
- * For now, just allocate blocks up front.
- */
- args.agbno = INT_GET(agi->agi_root, ARCH_CONVERT);
- args.fsbno = XFS_AGB_TO_FSB(args.mp, INT_GET(agi->agi_seqno, ARCH_CONVERT),
- args.agbno);
- /*
- * Allocate a fixed-size extent of inodes.
- */
- args.type = XFS_ALLOCTYPE_NEAR_BNO;
- args.mod = args.total = args.wasdel = args.isfl = args.userdata =
- args.minalignslop = 0;
- args.prod = 1;
- /*
- * Allow space for the inode btree to split.
- */
- args.minleft = XFS_IN_MAXLEVELS(args.mp) - 1;
- if ((error = xfs_alloc_vextent(&args)))
- return error;
+ newino = be32_to_cpu(agi->agi_newino);
+ args.agbno = XFS_AGINO_TO_AGBNO(args.mp, newino) +
+ XFS_IALLOC_BLOCKS(args.mp);
+ if (likely(newino != NULLAGINO &&
+ (args.agbno < be32_to_cpu(agi->agi_length)))) {
+ args.fsbno = XFS_AGB_TO_FSB(args.mp,
+ be32_to_cpu(agi->agi_seqno), args.agbno);
+ args.type = XFS_ALLOCTYPE_THIS_BNO;
+ args.mod = args.total = args.wasdel = args.isfl =
+ args.userdata = args.minalignslop = 0;
+ args.prod = 1;
+
+ /*
+ * We need to take into account alignment here to ensure that
+ * we don't modify the free list if we fail to have an exact
+ * block. If we don't have an exact match, and every oher
+ * attempt allocation attempt fails, we'll end up cancelling
+ * a dirty transaction and shutting down.
+ *
+ * For an exact allocation, alignment must be 1,
+ * however we need to take cluster alignment into account when
+ * fixing up the freelist. Use the minalignslop field to
+ * indicate that extra blocks might be required for alignment,
+ * but not to use them in the actual exact allocation.
+ */
+ args.alignment = 1;
+ args.minalignslop = xfs_ialloc_cluster_alignment(&args) - 1;
+
+ /* Allow space for the inode btree to split. */
+ args.minleft = XFS_IN_MAXLEVELS(args.mp) - 1;
+ if ((error = xfs_alloc_vextent(&args)))
+ return error;
+ } else
+ args.fsbno = NULLFSBLOCK;
+
+ if (unlikely(args.fsbno == NULLFSBLOCK)) {
+ /*
+ * Set the alignment for the allocation.
+ * If stripe alignment is turned on then align at stripe unit
+ * boundary.
+ * If the cluster size is smaller than a filesystem block
+ * then we're doing I/O for inodes in filesystem block size
+ * pieces, so don't need alignment anyway.
+ */
+ isaligned = 0;
+ if (args.mp->m_sinoalign) {
+ ASSERT(!(args.mp->m_flags & XFS_MOUNT_NOALIGN));
+ args.alignment = args.mp->m_dalign;
+ isaligned = 1;
+ } else
+ args.alignment = xfs_ialloc_cluster_alignment(&args);
+ /*
+ * Need to figure out where to allocate the inode blocks.
+ * Ideally they should be spaced out through the a.g.
+ * For now, just allocate blocks up front.
+ */
+ args.agbno = be32_to_cpu(agi->agi_root);
+ args.fsbno = XFS_AGB_TO_FSB(args.mp,
+ be32_to_cpu(agi->agi_seqno), args.agbno);
+ /*
+ * Allocate a fixed-size extent of inodes.
+ */
+ args.type = XFS_ALLOCTYPE_NEAR_BNO;
+ args.mod = args.total = args.wasdel = args.isfl =
+ args.userdata = args.minalignslop = 0;
+ args.prod = 1;
+ /*
+ * Allow space for the inode btree to split.
+ */
+ args.minleft = XFS_IN_MAXLEVELS(args.mp) - 1;
+ if ((error = xfs_alloc_vextent(&args)))
+ return error;
+ }
/*
* If stripe alignment is turned on, then try again with cluster
*/
if (isaligned && args.fsbno == NULLFSBLOCK) {
args.type = XFS_ALLOCTYPE_NEAR_BNO;
- args.agbno = INT_GET(agi->agi_root, ARCH_CONVERT);
+ args.agbno = be32_to_cpu(agi->agi_root);
args.fsbno = XFS_AGB_TO_FSB(args.mp,
- INT_GET(agi->agi_seqno, ARCH_CONVERT), args.agbno);
- if (XFS_SB_VERSION_HASALIGN(&args.mp->m_sb) &&
- args.mp->m_sb.sb_inoalignmt >=
- XFS_B_TO_FSBT(args.mp, XFS_INODE_CLUSTER_SIZE(args.mp)))
- args.alignment = args.mp->m_sb.sb_inoalignmt;
- else
- args.alignment = 1;
+ be32_to_cpu(agi->agi_seqno), args.agbno);
+ args.alignment = xfs_ialloc_cluster_alignment(&args);
if ((error = xfs_alloc_vextent(&args)))
return error;
}
* use the old version so that old kernels will continue to be
* able to use the file system.
*/
- if (XFS_SB_VERSION_HASNLINK(&args.mp->m_sb))
+ if (xfs_sb_version_hasnlink(&args.mp->m_sb))
version = XFS_DINODE_VERSION_2;
else
version = XFS_DINODE_VERSION_1;
- memset(&dic, 0, sizeof(xfs_dinode_core_t));
- INT_SET(dic.di_magic, ARCH_CONVERT, XFS_DINODE_MAGIC);
- INT_SET(dic.di_version, ARCH_CONVERT, version);
-
+ /*
+ * Seed the new inode cluster with a random generation number. This
+ * prevents short-term reuse of generation numbers if a chunk is
+ * freed and then immediately reallocated. We use random numbers
+ * rather than a linear progression to prevent the next generation
+ * number from being easily guessable.
+ */
+ gen = random32();
for (j = 0; j < nbufs; j++) {
/*
* Get the block.
*/
- d = XFS_AGB_TO_DADDR(args.mp, INT_GET(agi->agi_seqno, ARCH_CONVERT),
+ d = XFS_AGB_TO_DADDR(args.mp, be32_to_cpu(agi->agi_seqno),
args.agbno + (j * blks_per_cluster));
fbuf = xfs_trans_get_buf(tp, args.mp->m_ddev_targp, d,
args.mp->m_bsize * blks_per_cluster,
ASSERT(fbuf);
ASSERT(!XFS_BUF_GETERROR(fbuf));
/*
- * Loop over the inodes in this buffer.
+ * Set initial values for the inodes in this buffer.
*/
-
+ xfs_biozero(fbuf, 0, ninodes << args.mp->m_sb.sb_inodelog);
for (i = 0; i < ninodes; i++) {
free = XFS_MAKE_IPTR(args.mp, fbuf, i);
- memcpy(&(free->di_core), &dic, sizeof(xfs_dinode_core_t));
- INT_SET(free->di_next_unlinked, ARCH_CONVERT, NULLAGINO);
+ free->di_core.di_magic = cpu_to_be16(XFS_DINODE_MAGIC);
+ free->di_core.di_version = version;
+ free->di_core.di_gen = cpu_to_be32(gen);
+ free->di_next_unlinked = cpu_to_be32(NULLAGINO);
xfs_ialloc_log_di(tp, fbuf, i,
XFS_DI_CORE_BITS | XFS_DI_NEXT_UNLINKED);
}
xfs_trans_inode_alloc_buf(tp, fbuf);
}
- INT_MOD(agi->agi_count, ARCH_CONVERT, newlen);
- INT_MOD(agi->agi_freecount, ARCH_CONVERT, newlen);
+ be32_add_cpu(&agi->agi_count, newlen);
+ be32_add_cpu(&agi->agi_freecount, newlen);
+ agno = be32_to_cpu(agi->agi_seqno);
down_read(&args.mp->m_peraglock);
- args.mp->m_perag[INT_GET(agi->agi_seqno, ARCH_CONVERT)].pagi_freecount += newlen;
+ args.mp->m_perag[agno].pagi_freecount += newlen;
up_read(&args.mp->m_peraglock);
- INT_SET(agi->agi_newino, ARCH_CONVERT, newino);
+ agi->agi_newino = cpu_to_be32(newino);
/*
* Insert records describing the new inode chunk into the btree.
*/
- cur = xfs_btree_init_cursor(args.mp, tp, agbp,
- INT_GET(agi->agi_seqno, ARCH_CONVERT),
+ cur = xfs_btree_init_cursor(args.mp, tp, agbp, agno,
XFS_BTNUM_INO, (xfs_inode_t *)0, 0);
for (thisino = newino;
thisino < newino + newlen;
return 0;
}
-STATIC __inline xfs_agnumber_t
+STATIC_INLINE xfs_agnumber_t
xfs_ialloc_next_ag(
xfs_mount_t *mp)
{
*/
if (XFS_FORCED_SHUTDOWN(mp)) {
up_read(&mp->m_peraglock);
- return (xfs_buf_t *)0;
+ return NULL;
}
agno++;
if (agno >= agcount)
if (agno == pagno) {
if (flags == 0) {
up_read(&mp->m_peraglock);
- return (xfs_buf_t *)0;
+ return NULL;
}
flags = 0;
}
int offset; /* index of inode in chunk */
xfs_agino_t pagino; /* parent's a.g. relative inode # */
xfs_agnumber_t pagno; /* parent's allocation group number */
- xfs_inobt_rec_t rec; /* inode allocation record */
+ xfs_inobt_rec_incore_t rec; /* inode allocation record */
xfs_agnumber_t tagno; /* testing allocation group number */
xfs_btree_cur_t *tcur; /* temp cursor */
- xfs_inobt_rec_t trec; /* temp inode allocation record */
+ xfs_inobt_rec_incore_t trec; /* temp inode allocation record */
if (*IO_agbp == NULL) {
return 0;
}
agi = XFS_BUF_TO_AGI(agbp);
- ASSERT(INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC);
+ ASSERT(be32_to_cpu(agi->agi_magicnum) == XFS_AGI_MAGIC);
} else {
/*
* Continue where we left off before. In this case, we
*/
agbp = *IO_agbp;
agi = XFS_BUF_TO_AGI(agbp);
- ASSERT(INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC);
- ASSERT(INT_GET(agi->agi_freecount, ARCH_CONVERT) > 0);
+ ASSERT(be32_to_cpu(agi->agi_magicnum) == XFS_AGI_MAGIC);
+ ASSERT(be32_to_cpu(agi->agi_freecount) > 0);
}
mp = tp->t_mountp;
agcount = mp->m_sb.sb_agcount;
- agno = INT_GET(agi->agi_seqno, ARCH_CONVERT);
+ agno = be32_to_cpu(agi->agi_seqno);
tagno = agno;
pagno = XFS_INO_TO_AGNO(mp, parent);
pagino = XFS_INO_TO_AGINO(mp, parent);
* can commit the current transaction and call
* us again where we left off.
*/
- ASSERT(INT_GET(agi->agi_freecount, ARCH_CONVERT) > 0);
+ ASSERT(be32_to_cpu(agi->agi_freecount) > 0);
*alloc_done = B_TRUE;
*IO_agbp = agbp;
*inop = NULLFSINO;
if (error)
goto nextag;
agi = XFS_BUF_TO_AGI(agbp);
- ASSERT(INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC);
+ ASSERT(be32_to_cpu(agi->agi_magicnum) == XFS_AGI_MAGIC);
}
/*
* Here with an allocation group that has a free inode.
*/
agno = tagno;
*IO_agbp = NULL;
- cur = xfs_btree_init_cursor(mp, tp, agbp, INT_GET(agi->agi_seqno, ARCH_CONVERT),
+ cur = xfs_btree_init_cursor(mp, tp, agbp, be32_to_cpu(agi->agi_seqno),
XFS_BTNUM_INO, (xfs_inode_t *)0, 0);
/*
* If pagino is 0 (this is the root inode allocation) use newino.
* This must work because we've just allocated some.
*/
if (!pagino)
- pagino = INT_GET(agi->agi_newino, ARCH_CONVERT);
+ pagino = be32_to_cpu(agi->agi_newino);
#ifdef DEBUG
if (cur->bc_nlevels == 1) {
int freecount = 0;
goto error0;
} while (i == 1);
- ASSERT(freecount == INT_GET(agi->agi_freecount, ARCH_CONVERT) ||
+ ASSERT(freecount == be32_to_cpu(agi->agi_freecount) ||
XFS_FORCED_SHUTDOWN(mp));
}
#endif
* In a different a.g. from the parent.
* See if the most recently allocated block has any free.
*/
- else if (INT_GET(agi->agi_newino, ARCH_CONVERT) != NULLAGINO) {
+ else if (be32_to_cpu(agi->agi_newino) != NULLAGINO) {
if ((error = xfs_inobt_lookup_eq(cur,
- INT_GET(agi->agi_newino, ARCH_CONVERT), 0, 0, &i)))
+ be32_to_cpu(agi->agi_newino), 0, 0, &i)))
goto error0;
if (i == 1 &&
(error = xfs_inobt_get_rec(cur, &rec.ir_startino,
if ((error = xfs_inobt_update(cur, rec.ir_startino, rec.ir_freecount,
rec.ir_free)))
goto error0;
- INT_MOD(agi->agi_freecount, ARCH_CONVERT, -1);
+ be32_add_cpu(&agi->agi_freecount, -1);
xfs_ialloc_log_agi(tp, agbp, XFS_AGI_FREECOUNT);
down_read(&mp->m_peraglock);
mp->m_perag[tagno].pagi_freecount--;
if ((error = xfs_inobt_increment(cur, 0, &i)))
goto error0;
} while (i == 1);
- ASSERT(freecount == INT_GET(agi->agi_freecount, ARCH_CONVERT) ||
+ ASSERT(freecount == be32_to_cpu(agi->agi_freecount) ||
XFS_FORCED_SHUTDOWN(mp));
}
#endif
int ilen; /* inodes in an inode cluster */
xfs_mount_t *mp; /* mount structure for filesystem */
int off; /* offset of inode in inode chunk */
- xfs_inobt_rec_t rec; /* btree record */
+ xfs_inobt_rec_incore_t rec; /* btree record */
mp = tp->t_mountp;
return error;
}
agi = XFS_BUF_TO_AGI(agbp);
- ASSERT(INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC);
- ASSERT(agbno < INT_GET(agi->agi_length, ARCH_CONVERT));
+ ASSERT(be32_to_cpu(agi->agi_magicnum) == XFS_AGI_MAGIC);
+ ASSERT(agbno < be32_to_cpu(agi->agi_length));
/*
* Initialize the cursor.
*/
goto error0;
}
} while (i == 1);
- ASSERT(freecount == INT_GET(agi->agi_freecount, ARCH_CONVERT) ||
+ ASSERT(freecount == be32_to_cpu(agi->agi_freecount) ||
XFS_FORCED_SHUTDOWN(mp));
}
#endif
rec.ir_freecount++;
/*
- * When an inode cluster is free, it becomes elgible for removal
+ * When an inode cluster is free, it becomes eligible for removal
*/
- if ((mp->m_flags & XFS_MOUNT_IDELETE) &&
+ if (!(mp->m_flags & XFS_MOUNT_IKEEP) &&
(rec.ir_freecount == XFS_IALLOC_INODES(mp))) {
*delete = 1;
* to be freed when the transaction is committed.
*/
ilen = XFS_IALLOC_INODES(mp);
- INT_MOD(agi->agi_count, ARCH_CONVERT, -ilen);
- INT_MOD(agi->agi_freecount, ARCH_CONVERT, -(ilen - 1));
+ be32_add_cpu(&agi->agi_count, -ilen);
+ be32_add_cpu(&agi->agi_freecount, -(ilen - 1));
xfs_ialloc_log_agi(tp, agbp, XFS_AGI_COUNT | XFS_AGI_FREECOUNT);
down_read(&mp->m_peraglock);
mp->m_perag[agno].pagi_freecount -= ilen - 1;
/*
* Change the inode free counts and log the ag/sb changes.
*/
- INT_MOD(agi->agi_freecount, ARCH_CONVERT, 1);
+ be32_add_cpu(&agi->agi_freecount, 1);
xfs_ialloc_log_agi(tp, agbp, XFS_AGI_FREECOUNT);
down_read(&mp->m_peraglock);
mp->m_perag[agno].pagi_freecount++;
goto error0;
}
} while (i == 1);
- ASSERT(freecount == INT_GET(agi->agi_freecount, ARCH_CONVERT) ||
+ ASSERT(freecount == be32_to_cpu(agi->agi_freecount) ||
XFS_FORCED_SHUTDOWN(mp));
}
#endif
if (agno >= mp->m_sb.sb_agcount || agbno >= mp->m_sb.sb_agblocks ||
ino != XFS_AGINO_TO_INO(mp, agno, agino)) {
#ifdef DEBUG
+ /* no diagnostics for bulkstat, ino comes from userspace */
+ if (flags & XFS_IMAP_BULKSTAT)
+ return XFS_ERROR(EINVAL);
if (agno >= mp->m_sb.sb_agcount) {
xfs_fs_cmn_err(CE_ALERT, mp,
"xfs_dilocate: agno (%d) >= "
"(0x%llx)",
ino, XFS_AGINO_TO_INO(mp, agno, agino));
}
+ xfs_stack_trace();
#endif /* DEBUG */
return XFS_ERROR(EINVAL);
}
xfs_agi_t *agi; /* allocation group header */
agi = XFS_BUF_TO_AGI(bp);
- ASSERT(INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC);
+ ASSERT(be32_to_cpu(agi->agi_magicnum) == XFS_AGI_MAGIC);
#endif
/*
* Compute byte offsets for the first and last fields.
*/
agi = XFS_BUF_TO_AGI(bp);
agi_ok =
- INT_GET(agi->agi_magicnum, ARCH_CONVERT) == XFS_AGI_MAGIC &&
- XFS_AGI_GOOD_VERSION(
- INT_GET(agi->agi_versionnum, ARCH_CONVERT));
+ be32_to_cpu(agi->agi_magicnum) == XFS_AGI_MAGIC &&
+ XFS_AGI_GOOD_VERSION(be32_to_cpu(agi->agi_versionnum));
if (unlikely(XFS_TEST_ERROR(!agi_ok, mp, XFS_ERRTAG_IALLOC_READ_AGI,
XFS_RANDOM_IALLOC_READ_AGI))) {
XFS_CORRUPTION_ERROR("xfs_ialloc_read_agi", XFS_ERRLEVEL_LOW,
}
pag = &mp->m_perag[agno];
if (!pag->pagi_init) {
- pag->pagi_freecount = INT_GET(agi->agi_freecount, ARCH_CONVERT);
+ pag->pagi_freecount = be32_to_cpu(agi->agi_freecount);
+ pag->pagi_count = be32_to_cpu(agi->agi_count);
pag->pagi_init = 1;
} else {
/*
* It's possible for these to be out of sync if
* we are in the middle of a forced shutdown.
*/
- ASSERT(pag->pagi_freecount ==
- INT_GET(agi->agi_freecount, ARCH_CONVERT)
- || XFS_FORCED_SHUTDOWN(mp));
+ ASSERT(pag->pagi_freecount == be32_to_cpu(agi->agi_freecount) ||
+ XFS_FORCED_SHUTDOWN(mp));
}
#ifdef DEBUG
*bpp = bp;
return 0;
}
+
+/*
+ * Read in the agi to initialise the per-ag data in the mount structure
+ */
+int
+xfs_ialloc_pagi_init(
+ xfs_mount_t *mp, /* file system mount structure */
+ xfs_trans_t *tp, /* transaction pointer */
+ xfs_agnumber_t agno) /* allocation group number */
+{
+ xfs_buf_t *bp = NULL;
+ int error;
+
+ error = xfs_ialloc_read_agi(mp, tp, agno, &bp);
+ if (error)
+ return error;
+ if (bp)
+ xfs_trans_brelse(tp, bp);
+ return 0;
+}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff