summaryrefslogtreecommitdiff
path: root/ANDROID_3.4.5/fs/xfs/xfs_ialloc_btree.c
diff options
context:
space:
mode:
authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/fs/xfs/xfs_ialloc_btree.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
downloadFOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz
FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2
FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/fs/xfs/xfs_ialloc_btree.c')
-rw-r--r--ANDROID_3.4.5/fs/xfs/xfs_ialloc_btree.c271
1 files changed, 0 insertions, 271 deletions
diff --git a/ANDROID_3.4.5/fs/xfs/xfs_ialloc_btree.c b/ANDROID_3.4.5/fs/xfs/xfs_ialloc_btree.c
deleted file mode 100644
index c6a75815..00000000
--- a/ANDROID_3.4.5/fs/xfs/xfs_ialloc_btree.c
+++ /dev/null
@@ -1,271 +0,0 @@
-/*
- * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * 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. See the
- * GNU General Public License for more details.
- *
- * 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_types.h"
-#include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_inum.h"
-#include "xfs_trans.h"
-#include "xfs_sb.h"
-#include "xfs_ag.h"
-#include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
-#include "xfs_inode.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
-#include "xfs_alloc.h"
-#include "xfs_error.h"
-
-
-STATIC int
-xfs_inobt_get_minrecs(
- struct xfs_btree_cur *cur,
- int level)
-{
- return cur->bc_mp->m_inobt_mnr[level != 0];
-}
-
-STATIC struct xfs_btree_cur *
-xfs_inobt_dup_cursor(
- struct xfs_btree_cur *cur)
-{
- return xfs_inobt_init_cursor(cur->bc_mp, cur->bc_tp,
- cur->bc_private.a.agbp, cur->bc_private.a.agno);
-}
-
-STATIC void
-xfs_inobt_set_root(
- struct xfs_btree_cur *cur,
- union xfs_btree_ptr *nptr,
- int inc) /* level change */
-{
- struct xfs_buf *agbp = cur->bc_private.a.agbp;
- struct xfs_agi *agi = XFS_BUF_TO_AGI(agbp);
-
- agi->agi_root = nptr->s;
- be32_add_cpu(&agi->agi_level, inc);
- xfs_ialloc_log_agi(cur->bc_tp, agbp, XFS_AGI_ROOT | XFS_AGI_LEVEL);
-}
-
-STATIC int
-xfs_inobt_alloc_block(
- struct xfs_btree_cur *cur,
- union xfs_btree_ptr *start,
- union xfs_btree_ptr *new,
- int length,
- int *stat)
-{
- xfs_alloc_arg_t args; /* block allocation args */
- int error; /* error return value */
- xfs_agblock_t sbno = be32_to_cpu(start->s);
-
- XFS_BTREE_TRACE_CURSOR(cur, XBT_ENTRY);
-
- memset(&args, 0, sizeof(args));
- args.tp = cur->bc_tp;
- args.mp = cur->bc_mp;
- args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_private.a.agno, sbno);
- args.minlen = 1;
- args.maxlen = 1;
- args.prod = 1;
- args.type = XFS_ALLOCTYPE_NEAR_BNO;
-
- error = xfs_alloc_vextent(&args);
- if (error) {
- XFS_BTREE_TRACE_CURSOR(cur, XBT_ERROR);
- return error;
- }
- if (args.fsbno == NULLFSBLOCK) {
- XFS_BTREE_TRACE_CURSOR(cur, XBT_EXIT);
- *stat = 0;
- return 0;
- }
- ASSERT(args.len == 1);
- XFS_BTREE_TRACE_CURSOR(cur, XBT_EXIT);
-
- new->s = cpu_to_be32(XFS_FSB_TO_AGBNO(args.mp, args.fsbno));
- *stat = 1;
- return 0;
-}
-
-STATIC int
-xfs_inobt_free_block(
- struct xfs_btree_cur *cur,
- struct xfs_buf *bp)
-{
- xfs_fsblock_t fsbno;
- int error;
-
- fsbno = XFS_DADDR_TO_FSB(cur->bc_mp, XFS_BUF_ADDR(bp));
- error = xfs_free_extent(cur->bc_tp, fsbno, 1);
- if (error)
- return error;
-
- xfs_trans_binval(cur->bc_tp, bp);
- return error;
-}
-
-STATIC int
-xfs_inobt_get_maxrecs(
- struct xfs_btree_cur *cur,
- int level)
-{
- return cur->bc_mp->m_inobt_mxr[level != 0];
-}
-
-STATIC void
-xfs_inobt_init_key_from_rec(
- union xfs_btree_key *key,
- union xfs_btree_rec *rec)
-{
- key->inobt.ir_startino = rec->inobt.ir_startino;
-}
-
-STATIC void
-xfs_inobt_init_rec_from_key(
- union xfs_btree_key *key,
- union xfs_btree_rec *rec)
-{
- rec->inobt.ir_startino = key->inobt.ir_startino;
-}
-
-STATIC void
-xfs_inobt_init_rec_from_cur(
- struct xfs_btree_cur *cur,
- union xfs_btree_rec *rec)
-{
- rec->inobt.ir_startino = cpu_to_be32(cur->bc_rec.i.ir_startino);
- rec->inobt.ir_freecount = cpu_to_be32(cur->bc_rec.i.ir_freecount);
- rec->inobt.ir_free = cpu_to_be64(cur->bc_rec.i.ir_free);
-}
-
-/*
- * initial value of ptr for lookup
- */
-STATIC void
-xfs_inobt_init_ptr_from_cur(
- struct xfs_btree_cur *cur,
- union xfs_btree_ptr *ptr)
-{
- struct xfs_agi *agi = XFS_BUF_TO_AGI(cur->bc_private.a.agbp);
-
- ASSERT(cur->bc_private.a.agno == be32_to_cpu(agi->agi_seqno));
-
- ptr->s = agi->agi_root;
-}
-
-STATIC __int64_t
-xfs_inobt_key_diff(
- struct xfs_btree_cur *cur,
- union xfs_btree_key *key)
-{
- return (__int64_t)be32_to_cpu(key->inobt.ir_startino) -
- cur->bc_rec.i.ir_startino;
-}
-
-#ifdef DEBUG
-STATIC int
-xfs_inobt_keys_inorder(
- struct xfs_btree_cur *cur,
- union xfs_btree_key *k1,
- union xfs_btree_key *k2)
-{
- return be32_to_cpu(k1->inobt.ir_startino) <
- be32_to_cpu(k2->inobt.ir_startino);
-}
-
-STATIC int
-xfs_inobt_recs_inorder(
- struct xfs_btree_cur *cur,
- union xfs_btree_rec *r1,
- union xfs_btree_rec *r2)
-{
- return be32_to_cpu(r1->inobt.ir_startino) + XFS_INODES_PER_CHUNK <=
- be32_to_cpu(r2->inobt.ir_startino);
-}
-#endif /* DEBUG */
-
-static const struct xfs_btree_ops xfs_inobt_ops = {
- .rec_len = sizeof(xfs_inobt_rec_t),
- .key_len = sizeof(xfs_inobt_key_t),
-
- .dup_cursor = xfs_inobt_dup_cursor,
- .set_root = xfs_inobt_set_root,
- .alloc_block = xfs_inobt_alloc_block,
- .free_block = xfs_inobt_free_block,
- .get_minrecs = xfs_inobt_get_minrecs,
- .get_maxrecs = xfs_inobt_get_maxrecs,
- .init_key_from_rec = xfs_inobt_init_key_from_rec,
- .init_rec_from_key = xfs_inobt_init_rec_from_key,
- .init_rec_from_cur = xfs_inobt_init_rec_from_cur,
- .init_ptr_from_cur = xfs_inobt_init_ptr_from_cur,
- .key_diff = xfs_inobt_key_diff,
-#ifdef DEBUG
- .keys_inorder = xfs_inobt_keys_inorder,
- .recs_inorder = xfs_inobt_recs_inorder,
-#endif
-};
-
-/*
- * Allocate a new inode btree cursor.
- */
-struct xfs_btree_cur * /* new inode btree cursor */
-xfs_inobt_init_cursor(
- struct xfs_mount *mp, /* file system mount point */
- struct xfs_trans *tp, /* transaction pointer */
- struct xfs_buf *agbp, /* buffer for agi structure */
- xfs_agnumber_t agno) /* allocation group number */
-{
- struct xfs_agi *agi = XFS_BUF_TO_AGI(agbp);
- struct xfs_btree_cur *cur;
-
- cur = kmem_zone_zalloc(xfs_btree_cur_zone, KM_SLEEP);
-
- cur->bc_tp = tp;
- cur->bc_mp = mp;
- cur->bc_nlevels = be32_to_cpu(agi->agi_level);
- cur->bc_btnum = XFS_BTNUM_INO;
- cur->bc_blocklog = mp->m_sb.sb_blocklog;
-
- cur->bc_ops = &xfs_inobt_ops;
-
- cur->bc_private.a.agbp = agbp;
- cur->bc_private.a.agno = agno;
-
- return cur;
-}
-
-/*
- * Calculate number of records in an inobt btree block.
- */
-int
-xfs_inobt_maxrecs(
- struct xfs_mount *mp,
- int blocklen,
- int leaf)
-{
- blocklen -= XFS_INOBT_BLOCK_LEN(mp);
-
- if (leaf)
- return blocklen / sizeof(xfs_inobt_rec_t);
- return blocklen / (sizeof(xfs_inobt_key_t) + sizeof(xfs_inobt_ptr_t));
-}