Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs (5fe3a5ae) · Commits · 戴 / test

fs/xfs/linux-2.6/xfs_buf.c

+120 −99

Original line number	Diff line number	Diff line
		@@ -188,8 +188,8 @@ _xfs_buf_initialize(
		atomic_set(&bp->b_hold, 1);
		init_completion(&bp->b_iowait);
		INIT_LIST_HEAD(&bp->b_list);
		INIT_LIST_HEAD(&bp->b_hash_list);
		init_MUTEX_LOCKED(&bp->b_sema); /* held, no waiters */
		RB_CLEAR_NODE(&bp->b_rbnode);
		sema_init(&bp->b_sema, 0); /* held, no waiters */
		XB_SET_OWNER(bp);
		bp->b_target = target;
		bp->b_file_offset = range_base;
		@@ -262,8 +262,6 @@ xfs_buf_free(
		{
		trace_xfs_buf_free(bp, _RET_IP_);

		ASSERT(list_empty(&bp->b_hash_list));

		if (bp->b_flags & (_XBF_PAGE_CACHE\|_XBF_PAGES)) {
		uint i;

		@@ -422,8 +420,10 @@ _xfs_buf_find(
		{
		xfs_off_t range_base;
		size_t range_length;
		xfs_bufhash_t *hash;
		xfs_buf_t bp, n;
		struct xfs_perag *pag;
		struct rb_node **rbp;
		struct rb_node *parent;
		xfs_buf_t *bp;

		range_base = (ioff << BBSHIFT);
		range_length = (isize << BBSHIFT);
		@@ -432,14 +432,37 @@ _xfs_buf_find(
		ASSERT(!(range_length < (1 << btp->bt_sshift)));
		ASSERT(!(range_base & (xfs_off_t)btp->bt_smask));

		hash = &btp->bt_hash[hash_long((unsigned long)ioff, btp->bt_hashshift)];

		spin_lock(&hash->bh_lock);

		list_for_each_entry_safe(bp, n, &hash->bh_list, b_hash_list) {
		ASSERT(btp == bp->b_target);
		if (bp->b_file_offset == range_base &&
		bp->b_buffer_length == range_length) {
		/* get tree root */
		pag = xfs_perag_get(btp->bt_mount,
		xfs_daddr_to_agno(btp->bt_mount, ioff));

		/* walk tree */
		spin_lock(&pag->pag_buf_lock);
		rbp = &pag->pag_buf_tree.rb_node;
		parent = NULL;
		bp = NULL;
		while (*rbp) {
		parent = *rbp;
		bp = rb_entry(parent, struct xfs_buf, b_rbnode);

		if (range_base < bp->b_file_offset)
		rbp = &(*rbp)->rb_left;
		else if (range_base > bp->b_file_offset)
		rbp = &(*rbp)->rb_right;
		else {
		/*
		* found a block offset match. If the range doesn't
		* match, the only way this is allowed is if the buffer
		* in the cache is stale and the transaction that made
		* it stale has not yet committed. i.e. we are
		* reallocating a busy extent. Skip this buffer and
		* continue searching to the right for an exact match.
		*/
		if (bp->b_buffer_length != range_length) {
		ASSERT(bp->b_flags & XBF_STALE);
		rbp = &(*rbp)->rb_right;
		continue;
		}
		atomic_inc(&bp->b_hold);
		goto found;
		}
		@@ -449,17 +472,21 @@ _xfs_buf_find(
		if (new_bp) {
		_xfs_buf_initialize(new_bp, btp, range_base,
		range_length, flags);
		new_bp->b_hash = hash;
		list_add(&new_bp->b_hash_list, &hash->bh_list);
		rb_link_node(&new_bp->b_rbnode, parent, rbp);
		rb_insert_color(&new_bp->b_rbnode, &pag->pag_buf_tree);
		/* the buffer keeps the perag reference until it is freed */
		new_bp->b_pag = pag;
		spin_unlock(&pag->pag_buf_lock);
		} else {
		XFS_STATS_INC(xb_miss_locked);
		spin_unlock(&pag->pag_buf_lock);
		xfs_perag_put(pag);
		}

		spin_unlock(&hash->bh_lock);
		return new_bp;

		found:
		spin_unlock(&hash->bh_lock);
		spin_unlock(&pag->pag_buf_lock);
		xfs_perag_put(pag);

		/* Attempt to get the semaphore without sleeping,
		* if this does not work then we need to drop the
		@@ -625,8 +652,7 @@ void
		xfs_buf_readahead(
		xfs_buftarg_t *target,
		xfs_off_t ioff,
		size_t isize,
		xfs_buf_flags_t flags)
		size_t isize)
		{
		struct backing_dev_info *bdi;

		@@ -634,8 +660,42 @@ xfs_buf_readahead(
		if (bdi_read_congested(bdi))
		return;

		flags \|= (XBF_TRYLOCK\|XBF_ASYNC\|XBF_READ_AHEAD);
		xfs_buf_read(target, ioff, isize, flags);
		xfs_buf_read(target, ioff, isize,
		XBF_TRYLOCK\|XBF_ASYNC\|XBF_READ_AHEAD\|XBF_DONT_BLOCK);
		}

		/*
		* Read an uncached buffer from disk. Allocates and returns a locked
		* buffer containing the disk contents or nothing.
		*/
		struct xfs_buf *
		xfs_buf_read_uncached(
		struct xfs_mount *mp,
		struct xfs_buftarg *target,
		xfs_daddr_t daddr,
		size_t length,
		int flags)
		{
		xfs_buf_t *bp;
		int error;

		bp = xfs_buf_get_uncached(target, length, flags);
		if (!bp)
		return NULL;

		/* set up the buffer for a read IO */
		xfs_buf_lock(bp);
		XFS_BUF_SET_ADDR(bp, daddr);
		XFS_BUF_READ(bp);
		XFS_BUF_BUSY(bp);

		xfsbdstrat(mp, bp);
		error = xfs_buf_iowait(bp);
		if (error \|\| bp->b_error) {
		xfs_buf_relse(bp);
		return NULL;
		}
		return bp;
		}

		xfs_buf_t *
		@@ -707,9 +767,10 @@ xfs_buf_associate_memory(
		}

		xfs_buf_t *
		xfs_buf_get_noaddr(
		xfs_buf_get_uncached(
		struct xfs_buftarg *target,
		size_t len,
		xfs_buftarg_t *target)
		int flags)
		{
		unsigned long page_count = PAGE_ALIGN(len) >> PAGE_SHIFT;
		int error, i;
		@@ -725,7 +786,7 @@ xfs_buf_get_noaddr(
		goto fail_free_buf;

		for (i = 0; i < page_count; i++) {
		bp->b_pages[i] = alloc_page(GFP_KERNEL);
		bp->b_pages[i] = alloc_page(xb_to_gfp(flags));
		if (!bp->b_pages[i])
		goto fail_free_mem;
		}
		@@ -740,7 +801,7 @@ xfs_buf_get_noaddr(

		xfs_buf_unlock(bp);

		trace_xfs_buf_get_noaddr(bp, _RET_IP_);
		trace_xfs_buf_get_uncached(bp, _RET_IP_);
		return bp;

		fail_free_mem:
		@@ -774,29 +835,30 @@ void
		xfs_buf_rele(
		xfs_buf_t *bp)
		{
		xfs_bufhash_t *hash = bp->b_hash;
		struct xfs_perag *pag = bp->b_pag;

		trace_xfs_buf_rele(bp, _RET_IP_);

		if (unlikely(!hash)) {
		if (!pag) {
		ASSERT(!bp->b_relse);
		ASSERT(RB_EMPTY_NODE(&bp->b_rbnode));
		if (atomic_dec_and_test(&bp->b_hold))
		xfs_buf_free(bp);
		return;
		}

		ASSERT(!RB_EMPTY_NODE(&bp->b_rbnode));
		ASSERT(atomic_read(&bp->b_hold) > 0);
		if (atomic_dec_and_lock(&bp->b_hold, &hash->bh_lock)) {
		if (atomic_dec_and_lock(&bp->b_hold, &pag->pag_buf_lock)) {
		if (bp->b_relse) {
		atomic_inc(&bp->b_hold);
		spin_unlock(&hash->bh_lock);
		(*(bp->b_relse)) (bp);
		} else if (bp->b_flags & XBF_FS_MANAGED) {
		spin_unlock(&hash->bh_lock);
		spin_unlock(&pag->pag_buf_lock);
		bp->b_relse(bp);
		} else {
		ASSERT(!(bp->b_flags & (XBF_DELWRI\|_XBF_DELWRI_Q)));
		list_del_init(&bp->b_hash_list);
		spin_unlock(&hash->bh_lock);
		rb_erase(&bp->b_rbnode, &pag->pag_buf_tree);
		spin_unlock(&pag->pag_buf_lock);
		xfs_perag_put(pag);
		xfs_buf_free(bp);
		}
		}
		@@ -859,7 +921,7 @@ xfs_buf_lock(
		trace_xfs_buf_lock(bp, _RET_IP_);

		if (atomic_read(&bp->b_pin_count) && (bp->b_flags & XBF_STALE))
		xfs_log_force(bp->b_mount, 0);
		xfs_log_force(bp->b_target->bt_mount, 0);
		if (atomic_read(&bp->b_io_remaining))
		blk_run_address_space(bp->b_target->bt_mapping);
		down(&bp->b_sema);
		@@ -970,7 +1032,6 @@ xfs_bwrite(
		{
		int error;

		bp->b_mount = mp;
		bp->b_flags \|= XBF_WRITE;
		bp->b_flags &= ~(XBF_ASYNC \| XBF_READ);

		@@ -991,8 +1052,6 @@ xfs_bdwrite(
		{
		trace_xfs_buf_bdwrite(bp, _RET_IP_);

		bp->b_mount = mp;

		bp->b_flags &= ~XBF_READ;
		bp->b_flags \|= (XBF_DELWRI \| XBF_ASYNC);

		@@ -1001,7 +1060,7 @@ xfs_bdwrite(

		/*
		* Called when we want to stop a buffer from getting written or read.
		* We attach the EIO error, muck with its flags, and call biodone
		* We attach the EIO error, muck with its flags, and call xfs_buf_ioend
		* so that the proper iodone callbacks get called.
		*/
		STATIC int
		@@ -1018,21 +1077,21 @@ xfs_bioerror(
		XFS_BUF_ERROR(bp, EIO);

		/*
		* We're calling biodone, so delete XBF_DONE flag.
		* We're calling xfs_buf_ioend, so delete XBF_DONE flag.
		*/
		XFS_BUF_UNREAD(bp);
		XFS_BUF_UNDELAYWRITE(bp);
		XFS_BUF_UNDONE(bp);
		XFS_BUF_STALE(bp);

		xfs_biodone(bp);
		xfs_buf_ioend(bp, 0);

		return EIO;
		}

		/*
		* Same as xfs_bioerror, except that we are releasing the buffer
		* here ourselves, and avoiding the biodone call.
		* here ourselves, and avoiding the xfs_buf_ioend call.
		* This is meant for userdata errors; metadata bufs come with
		* iodone functions attached, so that we can track down errors.
		*/
		@@ -1081,7 +1140,7 @@ int
		xfs_bdstrat_cb(
		struct xfs_buf *bp)
		{
		if (XFS_FORCED_SHUTDOWN(bp->b_mount)) {
		if (XFS_FORCED_SHUTDOWN(bp->b_target->bt_mount)) {
		trace_xfs_bdstrat_shut(bp, _RET_IP_);
		/*
		* Metadata write that didn't get logged but
		@@ -1387,62 +1446,24 @@ xfs_buf_iomove(
		*/
		void
		xfs_wait_buftarg(
		xfs_buftarg_t *btp)
		struct xfs_buftarg *btp)
		{
		xfs_buf_t bp, n;
		xfs_bufhash_t *hash;
		struct xfs_perag *pag;
		uint i;

		for (i = 0; i < (1 << btp->bt_hashshift); i++) {
		hash = &btp->bt_hash[i];
		again:
		spin_lock(&hash->bh_lock);
		list_for_each_entry_safe(bp, n, &hash->bh_list, b_hash_list) {
		ASSERT(btp == bp->b_target);
		if (!(bp->b_flags & XBF_FS_MANAGED)) {
		spin_unlock(&hash->bh_lock);
		/*
		* Catch superblock reference count leaks
		* immediately
		*/
		BUG_ON(bp->b_bn == 0);
		for (i = 0; i < btp->bt_mount->m_sb.sb_agcount; i++) {
		pag = xfs_perag_get(btp->bt_mount, i);
		spin_lock(&pag->pag_buf_lock);
		while (rb_first(&pag->pag_buf_tree)) {
		spin_unlock(&pag->pag_buf_lock);
		delay(100);
		goto again;
		}
		}
		spin_unlock(&hash->bh_lock);
		}
		spin_lock(&pag->pag_buf_lock);
		}

		/*
		* Allocate buffer hash table for a given target.
		* For devices containing metadata (i.e. not the log/realtime devices)
		* we need to allocate a much larger hash table.
		*/
		STATIC void
		xfs_alloc_bufhash(
		xfs_buftarg_t *btp,
		int external)
		{
		unsigned int i;

		btp->bt_hashshift = external ? 3 : 12; /* 8 or 4096 buckets */
		btp->bt_hash = kmem_zalloc_large((1 << btp->bt_hashshift) *
		sizeof(xfs_bufhash_t));
		for (i = 0; i < (1 << btp->bt_hashshift); i++) {
		spin_lock_init(&btp->bt_hash[i].bh_lock);
		INIT_LIST_HEAD(&btp->bt_hash[i].bh_list);
		spin_unlock(&pag->pag_buf_lock);
		xfs_perag_put(pag);
		}
		}

		STATIC void
		xfs_free_bufhash(
		xfs_buftarg_t *btp)
		{
		kmem_free_large(btp->bt_hash);
		btp->bt_hash = NULL;
		}

		/*
		* buftarg list for delwrite queue processing
		*/
		@@ -1475,7 +1496,6 @@ xfs_free_buftarg(
		xfs_flush_buftarg(btp, 1);
		if (mp->m_flags & XFS_MOUNT_BARRIER)
		xfs_blkdev_issue_flush(btp);
		xfs_free_bufhash(btp);
		iput(btp->bt_mapping->host);

		/* Unregister the buftarg first so that we don't get a
		@@ -1597,6 +1617,7 @@ out_error:

		xfs_buftarg_t *
		xfs_alloc_buftarg(
		struct xfs_mount *mp,
		struct block_device *bdev,
		int external,
		const char *fsname)
		@@ -1605,6 +1626,7 @@ xfs_alloc_buftarg(

		btp = kmem_zalloc(sizeof(*btp), KM_SLEEP);

		btp->bt_mount = mp;
		btp->bt_dev = bdev->bd_dev;
		btp->bt_bdev = bdev;
		if (xfs_setsize_buftarg_early(btp, bdev))
		@@ -1613,7 +1635,6 @@ xfs_alloc_buftarg(
		goto error;
		if (xfs_alloc_delwrite_queue(btp, fsname))
		goto error;
		xfs_alloc_bufhash(btp, external);
		return btp;

		error:
		@@ -1904,7 +1925,7 @@ xfs_flush_buftarg(
		bp = list_first_entry(&wait_list, struct xfs_buf, b_list);

		list_del_init(&bp->b_list);
		xfs_iowait(bp);
		xfs_buf_iowait(bp);
		xfs_buf_relse(bp);
		}
		}

fs/xfs/linux-2.6/xfs_buf.h

+30 −40

Original line number	Diff line number	Diff line
		@@ -51,7 +51,6 @@ typedef enum {
		#define XBF_DONE (1 << 5) /* all pages in the buffer uptodate */
		#define XBF_DELWRI (1 << 6) /* buffer has dirty pages */
		#define XBF_STALE (1 << 7) /* buffer has been staled, do not find it */
		#define XBF_FS_MANAGED (1 << 8) /* filesystem controls freeing memory */
		#define XBF_ORDERED (1 << 11)/* use ordered writes */
		#define XBF_READ_AHEAD (1 << 12)/* asynchronous read-ahead */
		#define XBF_LOG_BUFFER (1 << 13)/* this is a buffer used for the log */
		@@ -96,7 +95,6 @@ typedef unsigned int xfs_buf_flags_t;
		{ XBF_DONE, "DONE" }, \
		{ XBF_DELWRI, "DELWRI" }, \
		{ XBF_STALE, "STALE" }, \
		{ XBF_FS_MANAGED, "FS_MANAGED" }, \
		{ XBF_ORDERED, "ORDERED" }, \
		{ XBF_READ_AHEAD, "READ_AHEAD" }, \
		{ XBF_LOCK, "LOCK" }, /* should never be set */\
		@@ -123,14 +121,11 @@ typedef struct xfs_buftarg {
		dev_t bt_dev;
		struct block_device *bt_bdev;
		struct address_space *bt_mapping;
		struct xfs_mount *bt_mount;
		unsigned int bt_bsize;
		unsigned int bt_sshift;
		size_t bt_smask;

		/* per device buffer hash table */
		uint bt_hashshift;
		xfs_bufhash_t *bt_hash;

		/* per device delwri queue */
		struct task_struct *bt_task;
		struct list_head bt_list;
		@@ -158,34 +153,41 @@ typedef int (xfs_buf_bdstrat_t)(struct xfs_buf );
		#define XB_PAGES 2

		typedef struct xfs_buf {
		/*
		* first cacheline holds all the fields needed for an uncontended cache
		* hit to be fully processed. The semaphore straddles the cacheline
		* boundary, but the counter and lock sits on the first cacheline,
		* which is the only bit that is touched if we hit the semaphore
		* fast-path on locking.
		*/
		struct rb_node b_rbnode; /* rbtree node */
		xfs_off_t b_file_offset; /* offset in file */
		size_t b_buffer_length;/* size of buffer in bytes */
		atomic_t b_hold; /* reference count */
		xfs_buf_flags_t b_flags; /* status flags */
		struct semaphore b_sema; /* semaphore for lockables */
		unsigned long b_queuetime; /* time buffer was queued */
		atomic_t b_pin_count; /* pin count */

		wait_queue_head_t b_waiters; /* unpin waiters */
		struct list_head b_list;
		xfs_buf_flags_t b_flags; /* status flags */
		struct list_head b_hash_list; /* hash table list */
		xfs_bufhash_t b_hash; / hash table list start */
		struct xfs_perag b_pag; / contains rbtree root */
		xfs_buftarg_t b_target; / buffer target (device) */
		atomic_t b_hold; /* reference count */
		xfs_daddr_t b_bn; /* block number for I/O */
		xfs_off_t b_file_offset; /* offset in file */
		size_t b_buffer_length;/* size of buffer in bytes */
		size_t b_count_desired;/* desired transfer size */
		void b_addr; / virtual address of buffer */
		struct work_struct b_iodone_work;
		atomic_t b_io_remaining; /* #outstanding I/O requests */
		xfs_buf_iodone_t b_iodone; /* I/O completion function */
		xfs_buf_relse_t b_relse; /* releasing function */
		struct completion b_iowait; /* queue for I/O waiters */
		void *b_fspriv;
		void *b_fspriv2;
		struct xfs_mount *b_mount;
		unsigned short b_error; /* error code on I/O */
		unsigned int b_page_count; /* size of page array */
		unsigned int b_offset; /* page offset in first page */
		struct page *b_pages; / array of page pointers */
		struct page b_page_array[XB_PAGES]; / inline pages */
		unsigned long b_queuetime; /* time buffer was queued */
		atomic_t b_pin_count; /* pin count */
		atomic_t b_io_remaining; /* #outstanding I/O requests */
		unsigned int b_page_count; /* size of page array */
		unsigned int b_offset; /* page offset in first page */
		unsigned short b_error; /* error code on I/O */
		#ifdef XFS_BUF_LOCK_TRACKING
		int b_last_holder;
		#endif
		@@ -204,11 +206,13 @@ extern xfs_buf_t xfs_buf_read(xfs_buftarg_t , xfs_off_t, size_t,
		xfs_buf_flags_t);

		extern xfs_buf_t xfs_buf_get_empty(size_t, xfs_buftarg_t );
		extern xfs_buf_t xfs_buf_get_noaddr(size_t, xfs_buftarg_t );
		extern xfs_buf_t xfs_buf_get_uncached(struct xfs_buftarg , size_t, int);
		extern int xfs_buf_associate_memory(xfs_buf_t , void , size_t);
		extern void xfs_buf_hold(xfs_buf_t *);
		extern void xfs_buf_readahead(xfs_buftarg_t *, xfs_off_t, size_t,
		xfs_buf_flags_t);
		extern void xfs_buf_readahead(xfs_buftarg_t *, xfs_off_t, size_t);
		struct xfs_buf xfs_buf_read_uncached(struct xfs_mount mp,
		struct xfs_buftarg *target,
		xfs_daddr_t daddr, size_t length, int flags);

		/* Releasing Buffers */
		extern void xfs_buf_free(xfs_buf_t *);
		@@ -233,6 +237,8 @@ extern int xfs_buf_iorequest(xfs_buf_t *);
		extern int xfs_buf_iowait(xfs_buf_t *);
		extern void xfs_buf_iomove(xfs_buf_t , size_t, size_t, void ,
		xfs_buf_rw_t);
		#define xfs_buf_zero(bp, off, len) \
		xfs_buf_iomove((bp), (off), (len), NULL, XBRW_ZERO)

		static inline int xfs_buf_geterror(xfs_buf_t *bp)
		{
		@@ -267,8 +273,6 @@ extern void xfs_buf_terminate(void);
		XFS_BUF_DONE(bp); \
		} while (0)

		#define XFS_BUF_UNMANAGE(bp) ((bp)->b_flags &= ~XBF_FS_MANAGED)

		#define XFS_BUF_DELAYWRITE(bp) ((bp)->b_flags \|= XBF_DELWRI)
		#define XFS_BUF_UNDELAYWRITE(bp) xfs_buf_delwri_dequeue(bp)
		#define XFS_BUF_ISDELAYWRITE(bp) ((bp)->b_flags & XBF_DELWRI)
		@@ -347,25 +351,11 @@ static inline void xfs_buf_relse(xfs_buf_t *bp)
		xfs_buf_rele(bp);
		}

		#define xfs_biodone(bp) xfs_buf_ioend(bp, 0)

		#define xfs_biomove(bp, off, len, data, rw) \
		xfs_buf_iomove((bp), (off), (len), (data), \
		((rw) == XBF_WRITE) ? XBRW_WRITE : XBRW_READ)

		#define xfs_biozero(bp, off, len) \
		xfs_buf_iomove((bp), (off), (len), NULL, XBRW_ZERO)

		#define xfs_iowait(bp) xfs_buf_iowait(bp)

		#define xfs_baread(target, rablkno, ralen) \
		xfs_buf_readahead((target), (rablkno), (ralen), XBF_DONT_BLOCK)


		/*
		* Handling of buftargs.
		*/
		extern xfs_buftarg_t xfs_alloc_buftarg(struct block_device , int, const char *);
		extern xfs_buftarg_t xfs_alloc_buftarg(struct xfs_mount ,
		struct block_device , int, const char );
		extern void xfs_free_buftarg(struct xfs_mount , struct xfs_buftarg );
		extern void xfs_wait_buftarg(xfs_buftarg_t *);
		extern int xfs_setsize_buftarg(xfs_buftarg_t *, unsigned int, unsigned int);

fs/xfs/linux-2.6/xfs_cred.h

deleted100644 → 0

+0 −28

Original line number	Diff line number	Diff line
		/*
		* 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 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
		*/
		#ifndef __XFS_CRED_H__
		#define __XFS_CRED_H__

		#include <linux/capability.h>

		/*
		* Credentials
		*/
		typedef const struct cred cred_t;

		#endif /* __XFS_CRED_H__ */

fs/xfs/linux-2.6/xfs_fs_subr.c

+15 −16

Original line number	Diff line number	Diff line
		@@ -32,10 +32,9 @@ xfs_tosspages(
		xfs_off_t last,
		int fiopt)
		{
		struct address_space *mapping = VFS_I(ip)->i_mapping;

		if (mapping->nrpages)
		truncate_inode_pages(mapping, first);
		/* can't toss partial tail pages, so mask them out */
		last &= ~(PAGE_SIZE - 1);
		truncate_inode_pages_range(VFS_I(ip)->i_mapping, first, last - 1);
		}

		int
		@@ -50,12 +49,11 @@ xfs_flushinval_pages(

		trace_xfs_pagecache_inval(ip, first, last);

		if (mapping->nrpages) {
		xfs_iflags_clear(ip, XFS_ITRUNCATED);
		ret = filemap_write_and_wait(mapping);
		ret = filemap_write_and_wait_range(mapping, first,
		last == -1 ? LLONG_MAX : last);
		if (!ret)
		truncate_inode_pages(mapping, first);
		}
		truncate_inode_pages_range(mapping, first, last);
		return -ret;
		}

		@@ -71,10 +69,9 @@ xfs_flush_pages(
		int ret = 0;
		int ret2;

		if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
		xfs_iflags_clear(ip, XFS_ITRUNCATED);
		ret = -filemap_fdatawrite(mapping);
		}
		ret = -filemap_fdatawrite_range(mapping, first,
		last == -1 ? LLONG_MAX : last);
		if (flags & XBF_ASYNC)
		return ret;
		ret2 = xfs_wait_on_pages(ip, first, last);
		@@ -91,7 +88,9 @@ xfs_wait_on_pages(
		{
		struct address_space *mapping = VFS_I(ip)->i_mapping;

		if (mapping_tagged(mapping, PAGECACHE_TAG_WRITEBACK))
		return -filemap_fdatawait(mapping);
		if (mapping_tagged(mapping, PAGECACHE_TAG_WRITEBACK)) {
		return -filemap_fdatawait_range(mapping, first,
		last == -1 ? ip->i_size - 1 : last);
		}
		return 0;
		}

fs/xfs/linux-2.6/xfs_globals.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -16,7 +16,6 @@
		* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
		*/
		#include "xfs.h"
		#include "xfs_cred.h"
		#include "xfs_sysctl.h"

		/*

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