Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 695 deletions

diff --git a/ANDROID_3.4.5/fs/xfs/xfs_fsops.c b/ANDROID_3.4.5/fs/xfs/xfs_fsops.c
deleted file mode 100644
index 1c6fdeb7..00000000
--- a/ANDROID_3.4.5/fs/xfs/xfs_fsops.c
+++ /dev/null
@@ -1,695 +0,0 @@
-/*
- * Copyright (c) 2000-2005 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_inum.h"
-#include "xfs_log.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_inode_item.h"
-#include "xfs_btree.h"
-#include "xfs_error.h"
-#include "xfs_alloc.h"
-#include "xfs_ialloc.h"
-#include "xfs_fsops.h"
-#include "xfs_itable.h"
-#include "xfs_trans_space.h"
-#include "xfs_rtalloc.h"
-#include "xfs_rw.h"
-#include "xfs_filestream.h"
-#include "xfs_trace.h"
-
-/*
- * File system operations
- */
-
-int
-xfs_fs_geometry(
-	xfs_mount_t		*mp,
-	xfs_fsop_geom_t		*geo,
-	int			new_version)
-{
-
-	memset(geo, 0, sizeof(*geo));
-
-	geo->blocksize = mp->m_sb.sb_blocksize;
-	geo->rtextsize = mp->m_sb.sb_rextsize;
-	geo->agblocks = mp->m_sb.sb_agblocks;
-	geo->agcount = mp->m_sb.sb_agcount;
-	geo->logblocks = mp->m_sb.sb_logblocks;
-	geo->sectsize = mp->m_sb.sb_sectsize;
-	geo->inodesize = mp->m_sb.sb_inodesize;
-	geo->imaxpct = mp->m_sb.sb_imax_pct;
-	geo->datablocks = mp->m_sb.sb_dblocks;
-	geo->rtblocks = mp->m_sb.sb_rblocks;
-	geo->rtextents = mp->m_sb.sb_rextents;
-	geo->logstart = mp->m_sb.sb_logstart;
-	ASSERT(sizeof(geo->uuid)==sizeof(mp->m_sb.sb_uuid));
-	memcpy(geo->uuid, &mp->m_sb.sb_uuid, sizeof(mp->m_sb.sb_uuid));
-	if (new_version >= 2) {
-		geo->sunit = mp->m_sb.sb_unit;
-		geo->swidth = mp->m_sb.sb_width;
-	}
-	if (new_version >= 3) {
-		geo->version = XFS_FSOP_GEOM_VERSION;
-		geo->flags =
-			(xfs_sb_version_hasattr(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_ATTR : 0) |
-			(xfs_sb_version_hasnlink(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_NLINK : 0) |
-			(xfs_sb_version_hasquota(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_QUOTA : 0) |
-			(xfs_sb_version_hasalign(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_IALIGN : 0) |
-			(xfs_sb_version_hasdalign(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_DALIGN : 0) |
-			(xfs_sb_version_hasshared(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_SHARED : 0) |
-			(xfs_sb_version_hasextflgbit(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_EXTFLG : 0) |
-			(xfs_sb_version_hasdirv2(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_DIRV2 : 0) |
-			(xfs_sb_version_hassector(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_SECTOR : 0) |
-			(xfs_sb_version_hasasciici(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_DIRV2CI : 0) |
-			(xfs_sb_version_haslazysbcount(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_LAZYSB : 0) |
-			(xfs_sb_version_hasattr2(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_ATTR2 : 0);
-		geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ?
-				mp->m_sb.sb_logsectsize : BBSIZE;
-		geo->rtsectsize = mp->m_sb.sb_blocksize;
-		geo->dirblocksize = mp->m_dirblksize;
-	}
-	if (new_version >= 4) {
-		geo->flags |=
-			(xfs_sb_version_haslogv2(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_LOGV2 : 0);
-		geo->logsunit = mp->m_sb.sb_logsunit;
-	}
-	return 0;
-}
-
-static int
-xfs_growfs_data_private(
-	xfs_mount_t		*mp,		/* mount point for filesystem */
-	xfs_growfs_data_t	*in)		/* growfs data input struct */
-{
-	xfs_agf_t		*agf;
-	xfs_agi_t		*agi;
-	xfs_agnumber_t		agno;
-	xfs_extlen_t		agsize;
-	xfs_extlen_t		tmpsize;
-	xfs_alloc_rec_t		*arec;
-	struct xfs_btree_block	*block;
-	xfs_buf_t		*bp;
-	int			bucket;
-	int			dpct;
-	int			error;
-	xfs_agnumber_t		nagcount;
-	xfs_agnumber_t		nagimax = 0;
-	xfs_rfsblock_t		nb, nb_mod;
-	xfs_rfsblock_t		new;
-	xfs_rfsblock_t		nfree;
-	xfs_agnumber_t		oagcount;
-	int			pct;
-	xfs_trans_t		*tp;
-
-	nb = in->newblocks;
-	pct = in->imaxpct;
-	if (nb < mp->m_sb.sb_dblocks || pct < 0 || pct > 100)
-		return XFS_ERROR(EINVAL);
-	if ((error = xfs_sb_validate_fsb_count(&mp->m_sb, nb)))
-		return error;
-	dpct = pct - mp->m_sb.sb_imax_pct;
-	bp = xfs_buf_read_uncached(mp, mp->m_ddev_targp,
-				XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1),
-				BBTOB(XFS_FSS_TO_BB(mp, 1)), 0);
-	if (!bp)
-		return EIO;
-	xfs_buf_relse(bp);
-
-	new = nb;	/* use new as a temporary here */
-	nb_mod = do_div(new, mp->m_sb.sb_agblocks);
-	nagcount = new + (nb_mod != 0);
-	if (nb_mod && nb_mod < XFS_MIN_AG_BLOCKS) {
-		nagcount--;
-		nb = (xfs_rfsblock_t)nagcount * mp->m_sb.sb_agblocks;
-		if (nb < mp->m_sb.sb_dblocks)
-			return XFS_ERROR(EINVAL);
-	}
-	new = nb - mp->m_sb.sb_dblocks;
-	oagcount = mp->m_sb.sb_agcount;
-
-	/* allocate the new per-ag structures */
-	if (nagcount > oagcount) {
-		error = xfs_initialize_perag(mp, nagcount, &nagimax);
-		if (error)
-			return error;
-	}
-
-	tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS);
-	tp->t_flags |= XFS_TRANS_RESERVE;
-	if ((error = xfs_trans_reserve(tp, XFS_GROWFS_SPACE_RES(mp),
-			XFS_GROWDATA_LOG_RES(mp), 0, 0, 0))) {
-		xfs_trans_cancel(tp, 0);
-		return error;
-	}
-
-	/*
-	 * Write new AG headers to disk. Non-transactional, but written
-	 * synchronously so they are completed prior to the growfs transaction
-	 * being logged.
-	 */
-	nfree = 0;
-	for (agno = nagcount - 1; agno >= oagcount; agno--, new -= agsize) {
-		/*
-		 * AG freelist header block
-		 */
-		bp = xfs_buf_get(mp->m_ddev_targp,
-				 XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)),
-				 XFS_FSS_TO_BB(mp, 1), XBF_LOCK | XBF_MAPPED);
-		if (!bp) {
-			error = ENOMEM;
-			goto error0;
-		}
-		agf = XFS_BUF_TO_AGF(bp);
-		memset(agf, 0, mp->m_sb.sb_sectsize);
-		agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC);
-		agf->agf_versionnum = cpu_to_be32(XFS_AGF_VERSION);
-		agf->agf_seqno = cpu_to_be32(agno);
-		if (agno == nagcount - 1)
-			agsize =
-				nb -
-				(agno * (xfs_rfsblock_t)mp->m_sb.sb_agblocks);
-		else
-			agsize = mp->m_sb.sb_agblocks;
-		agf->agf_length = cpu_to_be32(agsize);
-		agf->agf_roots[XFS_BTNUM_BNOi] = cpu_to_be32(XFS_BNO_BLOCK(mp));
-		agf->agf_roots[XFS_BTNUM_CNTi] = cpu_to_be32(XFS_CNT_BLOCK(mp));
-		agf->agf_levels[XFS_BTNUM_BNOi] = cpu_to_be32(1);
-		agf->agf_levels[XFS_BTNUM_CNTi] = cpu_to_be32(1);
-		agf->agf_flfirst = 0;
-		agf->agf_fllast = cpu_to_be32(XFS_AGFL_SIZE(mp) - 1);
-		agf->agf_flcount = 0;
-		tmpsize = agsize - XFS_PREALLOC_BLOCKS(mp);
-		agf->agf_freeblks = cpu_to_be32(tmpsize);
-		agf->agf_longest = cpu_to_be32(tmpsize);
-		error = xfs_bwrite(bp);
-		xfs_buf_relse(bp);
-		if (error)
-			goto error0;
-
-		/*
-		 * AG inode header block
-		 */
-		bp = xfs_buf_get(mp->m_ddev_targp,
-				 XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)),
-				 XFS_FSS_TO_BB(mp, 1), XBF_LOCK | XBF_MAPPED);
-		if (!bp) {
-			error = ENOMEM;
-			goto error0;
-		}
-		agi = XFS_BUF_TO_AGI(bp);
-		memset(agi, 0, mp->m_sb.sb_sectsize);
-		agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC);
-		agi->agi_versionnum = cpu_to_be32(XFS_AGI_VERSION);
-		agi->agi_seqno = cpu_to_be32(agno);
-		agi->agi_length = cpu_to_be32(agsize);
-		agi->agi_count = 0;
-		agi->agi_root = cpu_to_be32(XFS_IBT_BLOCK(mp));
-		agi->agi_level = cpu_to_be32(1);
-		agi->agi_freecount = 0;
-		agi->agi_newino = cpu_to_be32(NULLAGINO);
-		agi->agi_dirino = cpu_to_be32(NULLAGINO);
-		for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++)
-			agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO);
-		error = xfs_bwrite(bp);
-		xfs_buf_relse(bp);
-		if (error)
-			goto error0;
-
-		/*
-		 * BNO btree root block
-		 */
-		bp = xfs_buf_get(mp->m_ddev_targp,
-				 XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)),
-				 BTOBB(mp->m_sb.sb_blocksize),
-				 XBF_LOCK | XBF_MAPPED);
-		if (!bp) {
-			error = ENOMEM;
-			goto error0;
-		}
-		block = XFS_BUF_TO_BLOCK(bp);
-		memset(block, 0, mp->m_sb.sb_blocksize);
-		block->bb_magic = cpu_to_be32(XFS_ABTB_MAGIC);
-		block->bb_level = 0;
-		block->bb_numrecs = cpu_to_be16(1);
-		block->bb_u.s.bb_leftsib = cpu_to_be32(NULLAGBLOCK);
-		block->bb_u.s.bb_rightsib = cpu_to_be32(NULLAGBLOCK);
-		arec = XFS_ALLOC_REC_ADDR(mp, block, 1);
-		arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp));
-		arec->ar_blockcount = cpu_to_be32(
-			agsize - be32_to_cpu(arec->ar_startblock));
-		error = xfs_bwrite(bp);
-		xfs_buf_relse(bp);
-		if (error)
-			goto error0;
-
-		/*
-		 * CNT btree root block
-		 */
-		bp = xfs_buf_get(mp->m_ddev_targp,
-				 XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)),
-				 BTOBB(mp->m_sb.sb_blocksize),
-				 XBF_LOCK | XBF_MAPPED);
-		if (!bp) {
-			error = ENOMEM;
-			goto error0;
-		}
-		block = XFS_BUF_TO_BLOCK(bp);
-		memset(block, 0, mp->m_sb.sb_blocksize);
-		block->bb_magic = cpu_to_be32(XFS_ABTC_MAGIC);
-		block->bb_level = 0;
-		block->bb_numrecs = cpu_to_be16(1);
-		block->bb_u.s.bb_leftsib = cpu_to_be32(NULLAGBLOCK);
-		block->bb_u.s.bb_rightsib = cpu_to_be32(NULLAGBLOCK);
-		arec = XFS_ALLOC_REC_ADDR(mp, block, 1);
-		arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp));
-		arec->ar_blockcount = cpu_to_be32(
-			agsize - be32_to_cpu(arec->ar_startblock));
-		nfree += be32_to_cpu(arec->ar_blockcount);
-		error = xfs_bwrite(bp);
-		xfs_buf_relse(bp);
-		if (error)
-			goto error0;
-
-		/*
-		 * INO btree root block
-		 */
-		bp = xfs_buf_get(mp->m_ddev_targp,
-				 XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)),
-				 BTOBB(mp->m_sb.sb_blocksize),
-				 XBF_LOCK | XBF_MAPPED);
-		if (!bp) {
-			error = ENOMEM;
-			goto error0;
-		}
-		block = XFS_BUF_TO_BLOCK(bp);
-		memset(block, 0, mp->m_sb.sb_blocksize);
-		block->bb_magic = cpu_to_be32(XFS_IBT_MAGIC);
-		block->bb_level = 0;
-		block->bb_numrecs = 0;
-		block->bb_u.s.bb_leftsib = cpu_to_be32(NULLAGBLOCK);
-		block->bb_u.s.bb_rightsib = cpu_to_be32(NULLAGBLOCK);
-		error = xfs_bwrite(bp);
-		xfs_buf_relse(bp);
-		if (error)
-			goto error0;
-	}
-	xfs_trans_agblocks_delta(tp, nfree);
-	/*
-	 * There are new blocks in the old last a.g.
-	 */
-	if (new) {
-		/*
-		 * Change the agi length.
-		 */
-		error = xfs_ialloc_read_agi(mp, tp, agno, &bp);
-		if (error) {
-			goto error0;
-		}
-		ASSERT(bp);
-		agi = XFS_BUF_TO_AGI(bp);
-		be32_add_cpu(&agi->agi_length, new);
-		ASSERT(nagcount == oagcount ||
-		       be32_to_cpu(agi->agi_length) == mp->m_sb.sb_agblocks);
-		xfs_ialloc_log_agi(tp, bp, XFS_AGI_LENGTH);
-		/*
-		 * Change agf length.
-		 */
-		error = xfs_alloc_read_agf(mp, tp, agno, 0, &bp);
-		if (error) {
-			goto error0;
-		}
-		ASSERT(bp);
-		agf = XFS_BUF_TO_AGF(bp);
-		be32_add_cpu(&agf->agf_length, new);
-		ASSERT(be32_to_cpu(agf->agf_length) ==
-		       be32_to_cpu(agi->agi_length));
-
-		xfs_alloc_log_agf(tp, bp, XFS_AGF_LENGTH);
-		/*
-		 * Free the new space.
-		 */
-		error = xfs_free_extent(tp, XFS_AGB_TO_FSB(mp, agno,
-			be32_to_cpu(agf->agf_length) - new), new);
-		if (error) {
-			goto error0;
-		}
-	}
-
-	/*
-	 * Update changed superblock fields transactionally. These are not
-	 * seen by the rest of the world until the transaction commit applies
-	 * them atomically to the superblock.
-	 */
-	if (nagcount > oagcount)
-		xfs_trans_mod_sb(tp, XFS_TRANS_SB_AGCOUNT, nagcount - oagcount);
-	if (nb > mp->m_sb.sb_dblocks)
-		xfs_trans_mod_sb(tp, XFS_TRANS_SB_DBLOCKS,
-				 nb - mp->m_sb.sb_dblocks);
-	if (nfree)
-		xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, nfree);
-	if (dpct)
-		xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct);
-	error = xfs_trans_commit(tp, 0);
-	if (error)
-		return error;
-
-	/* New allocation groups fully initialized, so update mount struct */
-	if (nagimax)
-		mp->m_maxagi = nagimax;
-	if (mp->m_sb.sb_imax_pct) {
-		__uint64_t icount = mp->m_sb.sb_dblocks * mp->m_sb.sb_imax_pct;
-		do_div(icount, 100);
-		mp->m_maxicount = icount << mp->m_sb.sb_inopblog;
-	} else
-		mp->m_maxicount = 0;
-	xfs_set_low_space_thresholds(mp);
-
-	/* update secondary superblocks. */
-	for (agno = 1; agno < nagcount; agno++) {
-		error = xfs_read_buf(mp, mp->m_ddev_targp,
-				  XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
-				  XFS_FSS_TO_BB(mp, 1), 0, &bp);
-		if (error) {
-			xfs_warn(mp,
-		"error %d reading secondary superblock for ag %d",
-				error, agno);
-			break;
-		}
-		xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb, XFS_SB_ALL_BITS);
-		/*
-		 * If we get an error writing out the alternate superblocks,
-		 * just issue a warning and continue.  The real work is
-		 * already done and committed.
-		 */
-		error = xfs_bwrite(bp);
-		xfs_buf_relse(bp);
-		if (error) {
-			xfs_warn(mp,
-		"write error %d updating secondary superblock for ag %d",
-				error, agno);
-			break; /* no point in continuing */
-		}
-	}
-	return 0;
-
- error0:
-	xfs_trans_cancel(tp, XFS_TRANS_ABORT);
-	return error;
-}
-
-static int
-xfs_growfs_log_private(
-	xfs_mount_t		*mp,	/* mount point for filesystem */
-	xfs_growfs_log_t	*in)	/* growfs log input struct */
-{
-	xfs_extlen_t		nb;
-
-	nb = in->newblocks;
-	if (nb < XFS_MIN_LOG_BLOCKS || nb < XFS_B_TO_FSB(mp, XFS_MIN_LOG_BYTES))
-		return XFS_ERROR(EINVAL);
-	if (nb == mp->m_sb.sb_logblocks &&
-	    in->isint == (mp->m_sb.sb_logstart != 0))
-		return XFS_ERROR(EINVAL);
-	/*
-	 * Moving the log is hard, need new interfaces to sync
-	 * the log first, hold off all activity while moving it.
-	 * Can have shorter or longer log in the same space,
-	 * or transform internal to external log or vice versa.
-	 */
-	return XFS_ERROR(ENOSYS);
-}
-
-/*
- * protected versions of growfs function acquire and release locks on the mount
- * point - exported through ioctls: XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG,
- * XFS_IOC_FSGROWFSRT
- */
-
-
-int
-xfs_growfs_data(
-	xfs_mount_t		*mp,
-	xfs_growfs_data_t	*in)
-{
-	int error;
-
-	if (!capable(CAP_SYS_ADMIN))
-		return XFS_ERROR(EPERM);
-	if (!mutex_trylock(&mp->m_growlock))
-		return XFS_ERROR(EWOULDBLOCK);
-	error = xfs_growfs_data_private(mp, in);
-	mutex_unlock(&mp->m_growlock);
-	return error;
-}
-
-int
-xfs_growfs_log(
-	xfs_mount_t		*mp,
-	xfs_growfs_log_t	*in)
-{
-	int error;
-
-	if (!capable(CAP_SYS_ADMIN))
-		return XFS_ERROR(EPERM);
-	if (!mutex_trylock(&mp->m_growlock))
-		return XFS_ERROR(EWOULDBLOCK);
-	error = xfs_growfs_log_private(mp, in);
-	mutex_unlock(&mp->m_growlock);
-	return error;
-}
-
-/*
- * exported through ioctl XFS_IOC_FSCOUNTS
- */
-
-int
-xfs_fs_counts(
-	xfs_mount_t		*mp,
-	xfs_fsop_counts_t	*cnt)
-{
-	xfs_icsb_sync_counters(mp, XFS_ICSB_LAZY_COUNT);
-	spin_lock(&mp->m_sb_lock);
-	cnt->freedata = mp->m_sb.sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
-	cnt->freertx = mp->m_sb.sb_frextents;
-	cnt->freeino = mp->m_sb.sb_ifree;
-	cnt->allocino = mp->m_sb.sb_icount;
-	spin_unlock(&mp->m_sb_lock);
-	return 0;
-}
-
-/*
- * exported through ioctl XFS_IOC_SET_RESBLKS & XFS_IOC_GET_RESBLKS
- *
- * xfs_reserve_blocks is called to set m_resblks
- * in the in-core mount table. The number of unused reserved blocks
- * is kept in m_resblks_avail.
- *
- * Reserve the requested number of blocks if available. Otherwise return
- * as many as possible to satisfy the request. The actual number
- * reserved are returned in outval
- *
- * A null inval pointer indicates that only the current reserved blocks
- * available  should  be returned no settings are changed.
- */
-
-int
-xfs_reserve_blocks(
-	xfs_mount_t             *mp,
-	__uint64_t              *inval,
-	xfs_fsop_resblks_t      *outval)
-{
-	__int64_t		lcounter, delta, fdblks_delta;
-	__uint64_t		request;
-
-	/* If inval is null, report current values and return */
-	if (inval == (__uint64_t *)NULL) {
-		if (!outval)
-			return EINVAL;
-		outval->resblks = mp->m_resblks;
-		outval->resblks_avail = mp->m_resblks_avail;
-		return 0;
-	}
-
-	request = *inval;
-
-	/*
-	 * With per-cpu counters, this becomes an interesting
-	 * problem. we needto work out if we are freeing or allocation
-	 * blocks first, then we can do the modification as necessary.
-	 *
-	 * We do this under the m_sb_lock so that if we are near
-	 * ENOSPC, we will hold out any changes while we work out
-	 * what to do. This means that the amount of free space can
-	 * change while we do this, so we need to retry if we end up
-	 * trying to reserve more space than is available.
-	 *
-	 * We also use the xfs_mod_incore_sb() interface so that we
-	 * don't have to care about whether per cpu counter are
-	 * enabled, disabled or even compiled in....
-	 */
-retry:
-	spin_lock(&mp->m_sb_lock);
-	xfs_icsb_sync_counters_locked(mp, 0);
-
-	/*
-	 * If our previous reservation was larger than the current value,
-	 * then move any unused blocks back to the free pool.
-	 */
-	fdblks_delta = 0;
-	if (mp->m_resblks > request) {
-		lcounter = mp->m_resblks_avail - request;
-		if (lcounter  > 0) {		/* release unused blocks */
-			fdblks_delta = lcounter;
-			mp->m_resblks_avail -= lcounter;
-		}
-		mp->m_resblks = request;
-	} else {
-		__int64_t	free;
-
-		free =  mp->m_sb.sb_fdblocks - XFS_ALLOC_SET_ASIDE(mp);
-		if (!free)
-			goto out; /* ENOSPC and fdblks_delta = 0 */
-
-		delta = request - mp->m_resblks;
-		lcounter = free - delta;
-		if (lcounter < 0) {
-			/* We can't satisfy the request, just get what we can */
-			mp->m_resblks += free;
-			mp->m_resblks_avail += free;
-			fdblks_delta = -free;
-		} else {
-			fdblks_delta = -delta;
-			mp->m_resblks = request;
-			mp->m_resblks_avail += delta;
-		}
-	}
-out:
-	if (outval) {
-		outval->resblks = mp->m_resblks;
-		outval->resblks_avail = mp->m_resblks_avail;
-	}
-	spin_unlock(&mp->m_sb_lock);
-
-	if (fdblks_delta) {
-		/*
-		 * If we are putting blocks back here, m_resblks_avail is
-		 * already at its max so this will put it in the free pool.
-		 *
-		 * If we need space, we'll either succeed in getting it
-		 * from the free block count or we'll get an enospc. If
-		 * we get a ENOSPC, it means things changed while we were
-		 * calculating fdblks_delta and so we should try again to
-		 * see if there is anything left to reserve.
-		 *
-		 * Don't set the reserved flag here - we don't want to reserve
-		 * the extra reserve blocks from the reserve.....
-		 */
-		int error;
-		error = xfs_icsb_modify_counters(mp, XFS_SBS_FDBLOCKS,
-						 fdblks_delta, 0);
-		if (error == ENOSPC)
-			goto retry;
-	}
-	return 0;
-}
-
-/*
- * Dump a transaction into the log that contains no real change. This is needed
- * to be able to make the log dirty or stamp the current tail LSN into the log
- * during the covering operation.
- *
- * We cannot use an inode here for this - that will push dirty state back up
- * into the VFS and then periodic inode flushing will prevent log covering from
- * making progress. Hence we log a field in the superblock instead and use a
- * synchronous transaction to ensure the superblock is immediately unpinned
- * and can be written back.
- */
-int
-xfs_fs_log_dummy(
-	xfs_mount_t	*mp)
-{
-	xfs_trans_t	*tp;
-	int		error;
-
-	tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1, KM_SLEEP);
-	error = xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
-					XFS_DEFAULT_LOG_COUNT);
-	if (error) {
-		xfs_trans_cancel(tp, 0);
-		return error;
-	}
-
-	/* log the UUID because it is an unchanging field */
-	xfs_mod_sb(tp, XFS_SB_UUID);
-	xfs_trans_set_sync(tp);
-	return xfs_trans_commit(tp, 0);
-}
-
-int
-xfs_fs_goingdown(
-	xfs_mount_t	*mp,
-	__uint32_t	inflags)
-{
-	switch (inflags) {
-	case XFS_FSOP_GOING_FLAGS_DEFAULT: {
-		struct super_block *sb = freeze_bdev(mp->m_super->s_bdev);
-
-		if (sb && !IS_ERR(sb)) {
-			xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT);
-			thaw_bdev(sb->s_bdev, sb);
-		}
-
-		break;
-	}
-	case XFS_FSOP_GOING_FLAGS_LOGFLUSH:
-		xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT);
-		break;
-	case XFS_FSOP_GOING_FLAGS_NOLOGFLUSH:
-		xfs_force_shutdown(mp,
-				SHUTDOWN_FORCE_UMOUNT | SHUTDOWN_LOG_IO_ERROR);
-		break;
-	default:
-		return XFS_ERROR(EINVAL);
-	}
-
-	return 0;
-}