Commit eb8171b8 authored by Russell Cattelan's avatar Russell Cattelan Committed by Christoph Hellwig

[XFS] Move bits around to better manage common code. No functional change.

parent 2c640f57
...@@ -30,7 +30,7 @@ ...@@ -30,7 +30,7 @@
# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ # http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
# #
EXTRA_CFLAGS += -Ifs/xfs -funsigned-char EXTRA_CFLAGS += -Ifs/xfs -Ifs/xfs/linux -funsigned-char
ifeq ($(CONFIG_XFS_DEBUG),y) ifeq ($(CONFIG_XFS_DEBUG),y)
EXTRA_CFLAGS += -g -DSTATIC="" -DDEBUG -DXFSDEBUG EXTRA_CFLAGS += -g -DSTATIC="" -DDEBUG -DXFSDEBUG
...@@ -83,6 +83,7 @@ xfs-y += xfs_alloc.o \ ...@@ -83,6 +83,7 @@ xfs-y += xfs_alloc.o \
xfs_alloc_btree.o \ xfs_alloc_btree.o \
xfs_attr.o \ xfs_attr.o \
xfs_attr_leaf.o \ xfs_attr_leaf.o \
xfs_behavior.o \
xfs_bit.o \ xfs_bit.o \
xfs_bmap.o \ xfs_bmap.o \
xfs_bmap_btree.o \ xfs_bmap_btree.o \
...@@ -106,6 +107,7 @@ xfs-y += xfs_alloc.o \ ...@@ -106,6 +107,7 @@ xfs-y += xfs_alloc.o \
xfs_inode.o \ xfs_inode.o \
xfs_inode_item.o \ xfs_inode_item.o \
xfs_iocore.o \ xfs_iocore.o \
xfs_iomap.o \
xfs_itable.o \ xfs_itable.o \
xfs_dfrag.o \ xfs_dfrag.o \
xfs_log.o \ xfs_log.o \
...@@ -126,18 +128,15 @@ xfs-y += xfs_alloc.o \ ...@@ -126,18 +128,15 @@ xfs-y += xfs_alloc.o \
xfs-$(CONFIG_XFS_TRACE) += xfs_dir2_trace.o xfs-$(CONFIG_XFS_TRACE) += xfs_dir2_trace.o
# Objects in pagebuf/
xfs-y += pagebuf/page_buf.o
# Objects in linux/ # Objects in linux/
xfs-y += $(addprefix linux/, \ xfs-y += $(addprefix linux/, \
mrlock.o \
xfs_aops.o \ xfs_aops.o \
xfs_behavior.o \ xfs_buf.o \
xfs_file.o \ xfs_file.o \
xfs_fs_subr.o \ xfs_fs_subr.o \
xfs_globals.o \ xfs_globals.o \
xfs_ioctl.o \ xfs_ioctl.o \
xfs_iomap.o \
xfs_iops.o \ xfs_iops.o \
xfs_lrw.o \ xfs_lrw.o \
xfs_super.o \ xfs_super.o \
...@@ -148,7 +147,6 @@ xfs-y += $(addprefix linux/, \ ...@@ -148,7 +147,6 @@ xfs-y += $(addprefix linux/, \
xfs-y += $(addprefix support/, \ xfs-y += $(addprefix support/, \
debug.o \ debug.o \
move.o \ move.o \
mrlock.o \
qsort.o \ qsort.o \
uuid.o) uuid.o)
......
...@@ -62,9 +62,12 @@ ...@@ -62,9 +62,12 @@
#include <support/ktrace.h> #include <support/ktrace.h>
#include <support/debug.h> #include <support/debug.h>
#include <support/kmem.h> #include "kmem.h"
#include "page_buf.h" #include "xfs_types.h"
#include "xfs_cred.h"
#include "xfs_lrw.h"
#include "xfs_buf.h"
#define BBSHIFT 9 #define BBSHIFT 9
#define BN_ALIGN_MASK ((1 << (PAGE_CACHE_SHIFT - BBSHIFT)) - 1) #define BN_ALIGN_MASK ((1 << (PAGE_CACHE_SHIFT - BBSHIFT)) - 1)
......
...@@ -34,8 +34,8 @@ ...@@ -34,8 +34,8 @@
* Written by Steve Lord, Jim Mostek, Russell Cattelan at SGI * Written by Steve Lord, Jim Mostek, Russell Cattelan at SGI
*/ */
#ifndef __PAGE_BUF_H__ #ifndef __XFS_BUF_H__
#define __PAGE_BUF_H__ #define __XFS_BUF_H__
#include <linux/config.h> #include <linux/config.h>
#include <linux/list.h> #include <linux/list.h>
...@@ -337,4 +337,282 @@ extern void pagebuf_trace( ...@@ -337,4 +337,282 @@ extern void pagebuf_trace(
#define pagebuf_target_name(target) \ #define pagebuf_target_name(target) \
({ char __b[BDEVNAME_SIZE]; bdevname((target)->pbr_bdev, __b); __b; }) ({ char __b[BDEVNAME_SIZE]; bdevname((target)->pbr_bdev, __b); __b; })
#endif /* __PAGE_BUF_H__ */
/* These are just for xfs_syncsub... it sets an internal variable
* then passes it to VOP_FLUSH_PAGES or adds the flags to a newly gotten buf_t
*/
#define XFS_B_ASYNC PBF_ASYNC
#define XFS_B_DELWRI PBF_DELWRI
#define XFS_B_READ PBF_READ
#define XFS_B_WRITE PBF_WRITE
#define XFS_B_STALE PBF_STALE
#define XFS_BUF_TRYLOCK PBF_TRYLOCK
#define XFS_INCORE_TRYLOCK PBF_TRYLOCK
#define XFS_BUF_LOCK PBF_LOCK
#define XFS_BUF_MAPPED PBF_MAPPED
#define BUF_BUSY PBF_DONT_BLOCK
#define XFS_BUF_BFLAGS(x) ((x)->pb_flags)
#define XFS_BUF_ZEROFLAGS(x) \
((x)->pb_flags &= ~(PBF_READ|PBF_WRITE|PBF_ASYNC|PBF_SYNC|PBF_DELWRI))
#define XFS_BUF_STALE(x) ((x)->pb_flags |= XFS_B_STALE)
#define XFS_BUF_UNSTALE(x) ((x)->pb_flags &= ~XFS_B_STALE)
#define XFS_BUF_ISSTALE(x) ((x)->pb_flags & XFS_B_STALE)
#define XFS_BUF_SUPER_STALE(x) do { \
XFS_BUF_STALE(x); \
xfs_buf_undelay(x); \
XFS_BUF_DONE(x); \
} while (0)
#define XFS_BUF_MANAGE PBF_FS_MANAGED
#define XFS_BUF_UNMANAGE(x) ((x)->pb_flags &= ~PBF_FS_MANAGED)
static inline void xfs_buf_undelay(page_buf_t *pb)
{
if (pb->pb_flags & PBF_DELWRI) {
if (pb->pb_list.next != &pb->pb_list) {
pagebuf_delwri_dequeue(pb);
pagebuf_rele(pb);
} else {
pb->pb_flags &= ~PBF_DELWRI;
}
}
}
#define XFS_BUF_DELAYWRITE(x) ((x)->pb_flags |= PBF_DELWRI)
#define XFS_BUF_UNDELAYWRITE(x) xfs_buf_undelay(x)
#define XFS_BUF_ISDELAYWRITE(x) ((x)->pb_flags & PBF_DELWRI)
#define XFS_BUF_ERROR(x,no) pagebuf_ioerror(x,no)
#define XFS_BUF_GETERROR(x) pagebuf_geterror(x)
#define XFS_BUF_ISERROR(x) (pagebuf_geterror(x)?1:0)
#define XFS_BUF_DONE(x) ((x)->pb_flags &= ~(PBF_PARTIAL|PBF_NONE))
#define XFS_BUF_UNDONE(x) ((x)->pb_flags |= PBF_PARTIAL|PBF_NONE)
#define XFS_BUF_ISDONE(x) (!(PBF_NOT_DONE(x)))
#define XFS_BUF_BUSY(x) ((x)->pb_flags |= PBF_FORCEIO)
#define XFS_BUF_UNBUSY(x) ((x)->pb_flags &= ~PBF_FORCEIO)
#define XFS_BUF_ISBUSY(x) (1)
#define XFS_BUF_ASYNC(x) ((x)->pb_flags |= PBF_ASYNC)
#define XFS_BUF_UNASYNC(x) ((x)->pb_flags &= ~PBF_ASYNC)
#define XFS_BUF_ISASYNC(x) ((x)->pb_flags & PBF_ASYNC)
#define XFS_BUF_FLUSH(x) ((x)->pb_flags |= PBF_FLUSH)
#define XFS_BUF_UNFLUSH(x) ((x)->pb_flags &= ~PBF_FLUSH)
#define XFS_BUF_ISFLUSH(x) ((x)->pb_flags & PBF_FLUSH)
#define XFS_BUF_SHUT(x) printk("XFS_BUF_SHUT not implemented yet\n")
#define XFS_BUF_UNSHUT(x) printk("XFS_BUF_UNSHUT not implemented yet\n")
#define XFS_BUF_ISSHUT(x) (0)
#define XFS_BUF_HOLD(x) pagebuf_hold(x)
#define XFS_BUF_READ(x) ((x)->pb_flags |= PBF_READ)
#define XFS_BUF_UNREAD(x) ((x)->pb_flags &= ~PBF_READ)
#define XFS_BUF_ISREAD(x) ((x)->pb_flags & PBF_READ)
#define XFS_BUF_WRITE(x) ((x)->pb_flags |= PBF_WRITE)
#define XFS_BUF_UNWRITE(x) ((x)->pb_flags &= ~PBF_WRITE)
#define XFS_BUF_ISWRITE(x) ((x)->pb_flags & PBF_WRITE)
#define XFS_BUF_ISUNINITIAL(x) (0)
#define XFS_BUF_UNUNINITIAL(x) (0)
#define XFS_BUF_BP_ISMAPPED(bp) 1
typedef struct page_buf_s xfs_buf_t;
#define xfs_buf page_buf_s
typedef struct pb_target xfs_buftarg_t;
#define xfs_buftarg pb_target
#define XFS_BUF_DATAIO(x) ((x)->pb_flags |= PBF_FS_DATAIOD)
#define XFS_BUF_UNDATAIO(x) ((x)->pb_flags &= ~PBF_FS_DATAIOD)
#define XFS_BUF_IODONE_FUNC(buf) (buf)->pb_iodone
#define XFS_BUF_SET_IODONE_FUNC(buf, func) \
(buf)->pb_iodone = (func)
#define XFS_BUF_CLR_IODONE_FUNC(buf) \
(buf)->pb_iodone = NULL
#define XFS_BUF_SET_BDSTRAT_FUNC(buf, func) \
(buf)->pb_strat = (func)
#define XFS_BUF_CLR_BDSTRAT_FUNC(buf) \
(buf)->pb_strat = NULL
#define XFS_BUF_FSPRIVATE(buf, type) \
((type)(buf)->pb_fspriv)
#define XFS_BUF_SET_FSPRIVATE(buf, value) \
(buf)->pb_fspriv = (void *)(value)
#define XFS_BUF_FSPRIVATE2(buf, type) \
((type)(buf)->pb_fspriv2)
#define XFS_BUF_SET_FSPRIVATE2(buf, value) \
(buf)->pb_fspriv2 = (void *)(value)
#define XFS_BUF_FSPRIVATE3(buf, type) \
((type)(buf)->pb_fspriv3)
#define XFS_BUF_SET_FSPRIVATE3(buf, value) \
(buf)->pb_fspriv3 = (void *)(value)
#define XFS_BUF_SET_START(buf)
#define XFS_BUF_SET_BRELSE_FUNC(buf, value) \
(buf)->pb_relse = (value)
#define XFS_BUF_PTR(bp) (xfs_caddr_t)((bp)->pb_addr)
extern inline xfs_caddr_t xfs_buf_offset(page_buf_t *bp, size_t offset)
{
if (bp->pb_flags & PBF_MAPPED)
return XFS_BUF_PTR(bp) + offset;
return (xfs_caddr_t) pagebuf_offset(bp, offset);
}
#define XFS_BUF_SET_PTR(bp, val, count) \
pagebuf_associate_memory(bp, val, count)
#define XFS_BUF_ADDR(bp) ((bp)->pb_bn)
#define XFS_BUF_SET_ADDR(bp, blk) \
((bp)->pb_bn = (page_buf_daddr_t)(blk))
#define XFS_BUF_OFFSET(bp) ((bp)->pb_file_offset)
#define XFS_BUF_SET_OFFSET(bp, off) \
((bp)->pb_file_offset = (off))
#define XFS_BUF_COUNT(bp) ((bp)->pb_count_desired)
#define XFS_BUF_SET_COUNT(bp, cnt) \
((bp)->pb_count_desired = (cnt))
#define XFS_BUF_SIZE(bp) ((bp)->pb_buffer_length)
#define XFS_BUF_SET_SIZE(bp, cnt) \
((bp)->pb_buffer_length = (cnt))
#define XFS_BUF_SET_VTYPE_REF(bp, type, ref)
#define XFS_BUF_SET_VTYPE(bp, type)
#define XFS_BUF_SET_REF(bp, ref)
#define XFS_BUF_ISPINNED(bp) pagebuf_ispin(bp)
#define XFS_BUF_VALUSEMA(bp) pagebuf_lock_value(bp)
#define XFS_BUF_CPSEMA(bp) (pagebuf_cond_lock(bp) == 0)
#define XFS_BUF_VSEMA(bp) pagebuf_unlock(bp)
#define XFS_BUF_PSEMA(bp,x) pagebuf_lock(bp)
#define XFS_BUF_V_IODONESEMA(bp) up(&bp->pb_iodonesema);
/* setup the buffer target from a buftarg structure */
#define XFS_BUF_SET_TARGET(bp, target) \
(bp)->pb_target = (target)
#define XFS_BUF_TARGET(bp) ((bp)->pb_target)
#define XFS_BUFTARG_NAME(target) \
pagebuf_target_name(target)
#define XFS_BUF_SET_VTYPE_REF(bp, type, ref)
#define XFS_BUF_SET_VTYPE(bp, type)
#define XFS_BUF_SET_REF(bp, ref)
#define xfs_buf_read(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_LOCK | PBF_READ | PBF_MAPPED | PBF_MAPPABLE)
#define xfs_buf_get(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_LOCK | PBF_MAPPED | PBF_MAPPABLE)
#define xfs_buf_read_flags(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_READ | PBF_MAPPABLE | flags)
#define xfs_buf_get_flags(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_MAPPABLE | flags)
static inline int xfs_bawrite(void *mp, page_buf_t *bp)
{
bp->pb_fspriv3 = mp;
bp->pb_strat = xfs_bdstrat_cb;
xfs_buf_undelay(bp);
return pagebuf_iostart(bp, PBF_WRITE | PBF_ASYNC | PBF_RUN_QUEUES);
}
static inline void xfs_buf_relse(page_buf_t *bp)
{
if ((bp->pb_flags & _PBF_LOCKABLE) && !bp->pb_relse)
pagebuf_unlock(bp);
pagebuf_rele(bp);
}
#define xfs_bpin(bp) pagebuf_pin(bp)
#define xfs_bunpin(bp) pagebuf_unpin(bp)
#define xfs_buftrace(id, bp) \
pagebuf_trace(bp, id, NULL, (void *)__builtin_return_address(0))
#define xfs_biodone(pb) \
pagebuf_iodone(pb, (pb->pb_flags & PBF_FS_DATAIOD), 0)
#define xfs_incore(buftarg,blkno,len,lockit) \
pagebuf_find(buftarg, blkno ,len, lockit)
#define xfs_biomove(pb, off, len, data, rw) \
pagebuf_iomove((pb), (off), (len), (data), \
((rw) == XFS_B_WRITE) ? PBRW_WRITE : PBRW_READ)
#define xfs_biozero(pb, off, len) \
pagebuf_iomove((pb), (off), (len), NULL, PBRW_ZERO)
static inline int XFS_bwrite(page_buf_t *pb)
{
int iowait = (pb->pb_flags & PBF_ASYNC) == 0;
int error = 0;
pb->pb_flags |= PBF_SYNC;
if (!iowait)
pb->pb_flags |= PBF_RUN_QUEUES;
xfs_buf_undelay(pb);
pagebuf_iostrategy(pb);
if (iowait) {
error = pagebuf_iowait(pb);
xfs_buf_relse(pb);
}
return error;
}
#define XFS_bdwrite(pb) \
pagebuf_iostart(pb, PBF_DELWRI | PBF_ASYNC)
static inline int xfs_bdwrite(void *mp, page_buf_t *bp)
{
bp->pb_strat = xfs_bdstrat_cb;
bp->pb_fspriv3 = mp;
return pagebuf_iostart(bp, PBF_DELWRI | PBF_ASYNC);
}
#define XFS_bdstrat(bp) pagebuf_iorequest(bp)
#define xfs_iowait(pb) pagebuf_iowait(pb)
/*
* Go through all incore buffers, and release buffers
* if they belong to the given device. This is used in
* filesystem error handling to preserve the consistency
* of its metadata.
*/
#define xfs_binval(buftarg) xfs_flush_buftarg(buftarg)
#define XFS_bflush(buftarg) xfs_flush_buftarg(buftarg)
#define xfs_incore_relse(buftarg,delwri_only,wait) \
xfs_relse_buftarg(buftarg)
#define xfs_baread(target, rablkno, ralen) \
pagebuf_readahead((target), (rablkno), (ralen), PBF_DONT_BLOCK)
#define xfs_buf_get_empty(len, target) pagebuf_get_empty((len), (target))
#define xfs_buf_get_noaddr(len, target) pagebuf_get_no_daddr((len), (target))
#define xfs_buf_free(bp) pagebuf_free(bp)
#endif /* __XFS_BUF_H__ */
...@@ -55,19 +55,26 @@ ...@@ -55,19 +55,26 @@
#include <asm/byteorder.h> #include <asm/byteorder.h>
#include <asm/unaligned.h> #include <asm/unaligned.h>
#include <linux/xfs_behavior.h> #include <mrlock.h>
#include <linux/xfs_vfs.h> #include <spin.h>
#include <linux/xfs_cred.h> #include <sv.h>
#include <linux/xfs_vnode.h> #include <mutex.h>
#include <linux/xfs_stats.h> #include <sema.h>
#include <linux/xfs_sysctl.h> #include <time.h>
#include <linux/xfs_iops.h> #include <kmem.h>
#include <linux/xfs_super.h>
#include <linux/xfs_globals.h> #include <xfs_behavior.h>
#include <linux/xfs_fs_subr.h> #include <xfs_vfs.h>
#include <linux/xfs_lrw.h> #include <xfs_cred.h>
#include <xfs_vnode.h>
#include <pagebuf/page_buf.h> #include <xfs_stats.h>
#include <xfs_sysctl.h>
#include <xfs_iops.h>
#include <xfs_super.h>
#include <xfs_globals.h>
#include <xfs_fs_subr.h>
#include <xfs_lrw.h>
#include <xfs_buf.h>
/* /*
* Feature macros (disable/enable) * Feature macros (disable/enable)
......
...@@ -35,8 +35,8 @@ ...@@ -35,8 +35,8 @@
#include <linux/slab.h> #include <linux/slab.h>
#include <xfs_types.h> #include <xfs_types.h>
#include "kmem.h" #include <kmem.h>
#include "spin.h" #include <spin.h>
#include "debug.h" #include "debug.h"
#include "ktrace.h" #include "ktrace.h"
......
...@@ -32,7 +32,7 @@ ...@@ -32,7 +32,7 @@
#ifndef __XFS_SUPPORT_KTRACE_H__ #ifndef __XFS_SUPPORT_KTRACE_H__
#define __XFS_SUPPORT_KTRACE_H__ #define __XFS_SUPPORT_KTRACE_H__
#include <support/spin.h> #include <spin.h>
/* /*
* Trace buffer entry structure. * Trace buffer entry structure.
......
...@@ -33,11 +33,11 @@ ...@@ -33,11 +33,11 @@
#include <linux/types.h> #include <linux/types.h>
#include <xfs_types.h> #include <xfs_types.h>
#include <xfs_arch.h> #include <xfs_arch.h>
#include "time.h" #include <time.h>
#include <kmem.h>
#include <mutex.h>
#include "uuid.h" #include "uuid.h"
#include "kmem.h"
#include "debug.h" #include "debug.h"
#include "mutex.h"
static mutex_t uuid_monitor; static mutex_t uuid_monitor;
static int uuid_table_size; static int uuid_table_size;
......
...@@ -38,18 +38,11 @@ ...@@ -38,18 +38,11 @@
#include <xfs_arch.h> #include <xfs_arch.h>
#include <support/kmem.h>
#include <support/mrlock.h>
#include <support/qsort.h> #include <support/qsort.h>
#include <support/spin.h>
#include <support/sv.h>
#include <support/ktrace.h> #include <support/ktrace.h>
#include <support/mutex.h>
#include <support/sema.h>
#include <support/debug.h> #include <support/debug.h>
#include <support/move.h> #include <support/move.h>
#include <support/uuid.h> #include <support/uuid.h>
#include <support/time.h>
#include <linux/xfs_linux.h> #include <linux/xfs_linux.h>
......
/*
* Copyright (c) 2000-2003 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
* 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.
*
* 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/
*/
#ifndef __XFS_BUF_H__
#define __XFS_BUF_H__
/* These are just for xfs_syncsub... it sets an internal variable
* then passes it to VOP_FLUSH_PAGES or adds the flags to a newly gotten buf_t
*/
#define XFS_B_ASYNC PBF_ASYNC
#define XFS_B_DELWRI PBF_DELWRI
#define XFS_B_READ PBF_READ
#define XFS_B_WRITE PBF_WRITE
#define XFS_B_STALE PBF_STALE
#define XFS_BUF_TRYLOCK PBF_TRYLOCK
#define XFS_INCORE_TRYLOCK PBF_TRYLOCK
#define XFS_BUF_LOCK PBF_LOCK
#define XFS_BUF_MAPPED PBF_MAPPED
#define BUF_BUSY PBF_DONT_BLOCK
#define XFS_BUF_BFLAGS(x) ((x)->pb_flags)
#define XFS_BUF_ZEROFLAGS(x) \
((x)->pb_flags &= ~(PBF_READ|PBF_WRITE|PBF_ASYNC|PBF_SYNC|PBF_DELWRI))
#define XFS_BUF_STALE(x) ((x)->pb_flags |= XFS_B_STALE)
#define XFS_BUF_UNSTALE(x) ((x)->pb_flags &= ~XFS_B_STALE)
#define XFS_BUF_ISSTALE(x) ((x)->pb_flags & XFS_B_STALE)
#define XFS_BUF_SUPER_STALE(x) do { \
XFS_BUF_STALE(x); \
xfs_buf_undelay(x); \
XFS_BUF_DONE(x); \
} while (0)
#define XFS_BUF_MANAGE PBF_FS_MANAGED
#define XFS_BUF_UNMANAGE(x) ((x)->pb_flags &= ~PBF_FS_MANAGED)
static inline void xfs_buf_undelay(page_buf_t *pb)
{
if (pb->pb_flags & PBF_DELWRI) {
if (pb->pb_list.next != &pb->pb_list) {
pagebuf_delwri_dequeue(pb);
pagebuf_rele(pb);
} else {
pb->pb_flags &= ~PBF_DELWRI;
}
}
}
#define XFS_BUF_DELAYWRITE(x) ((x)->pb_flags |= PBF_DELWRI)
#define XFS_BUF_UNDELAYWRITE(x) xfs_buf_undelay(x)
#define XFS_BUF_ISDELAYWRITE(x) ((x)->pb_flags & PBF_DELWRI)
#define XFS_BUF_ERROR(x,no) pagebuf_ioerror(x,no)
#define XFS_BUF_GETERROR(x) pagebuf_geterror(x)
#define XFS_BUF_ISERROR(x) (pagebuf_geterror(x)?1:0)
#define XFS_BUF_DONE(x) ((x)->pb_flags &= ~(PBF_PARTIAL|PBF_NONE))
#define XFS_BUF_UNDONE(x) ((x)->pb_flags |= PBF_PARTIAL|PBF_NONE)
#define XFS_BUF_ISDONE(x) (!(PBF_NOT_DONE(x)))
#define XFS_BUF_BUSY(x) ((x)->pb_flags |= PBF_FORCEIO)
#define XFS_BUF_UNBUSY(x) ((x)->pb_flags &= ~PBF_FORCEIO)
#define XFS_BUF_ISBUSY(x) (1)
#define XFS_BUF_ASYNC(x) ((x)->pb_flags |= PBF_ASYNC)
#define XFS_BUF_UNASYNC(x) ((x)->pb_flags &= ~PBF_ASYNC)
#define XFS_BUF_ISASYNC(x) ((x)->pb_flags & PBF_ASYNC)
#define XFS_BUF_FLUSH(x) ((x)->pb_flags |= PBF_FLUSH)
#define XFS_BUF_UNFLUSH(x) ((x)->pb_flags &= ~PBF_FLUSH)
#define XFS_BUF_ISFLUSH(x) ((x)->pb_flags & PBF_FLUSH)
#define XFS_BUF_SHUT(x) printk("XFS_BUF_SHUT not implemented yet\n")
#define XFS_BUF_UNSHUT(x) printk("XFS_BUF_UNSHUT not implemented yet\n")
#define XFS_BUF_ISSHUT(x) (0)
#define XFS_BUF_HOLD(x) pagebuf_hold(x)
#define XFS_BUF_READ(x) ((x)->pb_flags |= PBF_READ)
#define XFS_BUF_UNREAD(x) ((x)->pb_flags &= ~PBF_READ)
#define XFS_BUF_ISREAD(x) ((x)->pb_flags & PBF_READ)
#define XFS_BUF_WRITE(x) ((x)->pb_flags |= PBF_WRITE)
#define XFS_BUF_UNWRITE(x) ((x)->pb_flags &= ~PBF_WRITE)
#define XFS_BUF_ISWRITE(x) ((x)->pb_flags & PBF_WRITE)
#define XFS_BUF_ISUNINITIAL(x) (0)
#define XFS_BUF_UNUNINITIAL(x) (0)
#define XFS_BUF_BP_ISMAPPED(bp) 1
typedef struct page_buf_s xfs_buf_t;
#define xfs_buf page_buf_s
typedef struct pb_target xfs_buftarg_t;
#define xfs_buftarg pb_target
#define XFS_BUF_DATAIO(x) ((x)->pb_flags |= PBF_FS_DATAIOD)
#define XFS_BUF_UNDATAIO(x) ((x)->pb_flags &= ~PBF_FS_DATAIOD)
#define XFS_BUF_IODONE_FUNC(buf) (buf)->pb_iodone
#define XFS_BUF_SET_IODONE_FUNC(buf, func) \
(buf)->pb_iodone = (func)
#define XFS_BUF_CLR_IODONE_FUNC(buf) \
(buf)->pb_iodone = NULL
#define XFS_BUF_SET_BDSTRAT_FUNC(buf, func) \
(buf)->pb_strat = (func)
#define XFS_BUF_CLR_BDSTRAT_FUNC(buf) \
(buf)->pb_strat = NULL
#define XFS_BUF_FSPRIVATE(buf, type) \
((type)(buf)->pb_fspriv)
#define XFS_BUF_SET_FSPRIVATE(buf, value) \
(buf)->pb_fspriv = (void *)(value)
#define XFS_BUF_FSPRIVATE2(buf, type) \
((type)(buf)->pb_fspriv2)
#define XFS_BUF_SET_FSPRIVATE2(buf, value) \
(buf)->pb_fspriv2 = (void *)(value)
#define XFS_BUF_FSPRIVATE3(buf, type) \
((type)(buf)->pb_fspriv3)
#define XFS_BUF_SET_FSPRIVATE3(buf, value) \
(buf)->pb_fspriv3 = (void *)(value)
#define XFS_BUF_SET_START(buf)
#define XFS_BUF_SET_BRELSE_FUNC(buf, value) \
(buf)->pb_relse = (value)
#define XFS_BUF_PTR(bp) (xfs_caddr_t)((bp)->pb_addr)
extern inline xfs_caddr_t xfs_buf_offset(page_buf_t *bp, size_t offset)
{
if (bp->pb_flags & PBF_MAPPED)
return XFS_BUF_PTR(bp) + offset;
return (xfs_caddr_t) pagebuf_offset(bp, offset);
}
#define XFS_BUF_SET_PTR(bp, val, count) \
pagebuf_associate_memory(bp, val, count)
#define XFS_BUF_ADDR(bp) ((bp)->pb_bn)
#define XFS_BUF_SET_ADDR(bp, blk) \
((bp)->pb_bn = (page_buf_daddr_t)(blk))
#define XFS_BUF_OFFSET(bp) ((bp)->pb_file_offset)
#define XFS_BUF_SET_OFFSET(bp, off) \
((bp)->pb_file_offset = (off))
#define XFS_BUF_COUNT(bp) ((bp)->pb_count_desired)
#define XFS_BUF_SET_COUNT(bp, cnt) \
((bp)->pb_count_desired = (cnt))
#define XFS_BUF_SIZE(bp) ((bp)->pb_buffer_length)
#define XFS_BUF_SET_SIZE(bp, cnt) \
((bp)->pb_buffer_length = (cnt))
#define XFS_BUF_SET_VTYPE_REF(bp, type, ref)
#define XFS_BUF_SET_VTYPE(bp, type)
#define XFS_BUF_SET_REF(bp, ref)
#define XFS_BUF_ISPINNED(bp) pagebuf_ispin(bp)
#define XFS_BUF_VALUSEMA(bp) pagebuf_lock_value(bp)
#define XFS_BUF_CPSEMA(bp) (pagebuf_cond_lock(bp) == 0)
#define XFS_BUF_VSEMA(bp) pagebuf_unlock(bp)
#define XFS_BUF_PSEMA(bp,x) pagebuf_lock(bp)
#define XFS_BUF_V_IODONESEMA(bp) up(&bp->pb_iodonesema);
/* setup the buffer target from a buftarg structure */
#define XFS_BUF_SET_TARGET(bp, target) \
(bp)->pb_target = (target)
#define XFS_BUF_TARGET(bp) ((bp)->pb_target)
#define XFS_BUFTARG_NAME(target) \
pagebuf_target_name(target)
#define XFS_BUF_SET_VTYPE_REF(bp, type, ref)
#define XFS_BUF_SET_VTYPE(bp, type)
#define XFS_BUF_SET_REF(bp, ref)
#define xfs_buf_read(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_LOCK | PBF_READ | PBF_MAPPED | PBF_MAPPABLE)
#define xfs_buf_get(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_LOCK | PBF_MAPPED | PBF_MAPPABLE)
#define xfs_buf_read_flags(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_READ | PBF_MAPPABLE | flags)
#define xfs_buf_get_flags(target, blkno, len, flags) \
pagebuf_get((target), (blkno), (len), \
PBF_MAPPABLE | flags)
static inline int xfs_bawrite(void *mp, page_buf_t *bp)
{
bp->pb_fspriv3 = mp;
bp->pb_strat = xfs_bdstrat_cb;
xfs_buf_undelay(bp);
return pagebuf_iostart(bp, PBF_WRITE | PBF_ASYNC | PBF_RUN_QUEUES);
}
static inline void xfs_buf_relse(page_buf_t *bp)
{
if ((bp->pb_flags & _PBF_LOCKABLE) && !bp->pb_relse)
pagebuf_unlock(bp);
pagebuf_rele(bp);
}
#define xfs_bpin(bp) pagebuf_pin(bp)
#define xfs_bunpin(bp) pagebuf_unpin(bp)
#define xfs_buftrace(id, bp) \
pagebuf_trace(bp, id, NULL, (void *)__builtin_return_address(0))
#define xfs_biodone(pb) \
pagebuf_iodone(pb, (pb->pb_flags & PBF_FS_DATAIOD), 0)
#define xfs_incore(buftarg,blkno,len,lockit) \
pagebuf_find(buftarg, blkno ,len, lockit)
#define xfs_biomove(pb, off, len, data, rw) \
pagebuf_iomove((pb), (off), (len), (data), \
((rw) == XFS_B_WRITE) ? PBRW_WRITE : PBRW_READ)
#define xfs_biozero(pb, off, len) \
pagebuf_iomove((pb), (off), (len), NULL, PBRW_ZERO)
static inline int XFS_bwrite(page_buf_t *pb)
{
int iowait = (pb->pb_flags & PBF_ASYNC) == 0;
int error = 0;
pb->pb_flags |= PBF_SYNC;
if (!iowait)
pb->pb_flags |= PBF_RUN_QUEUES;
xfs_buf_undelay(pb);
pagebuf_iostrategy(pb);
if (iowait) {
error = pagebuf_iowait(pb);
xfs_buf_relse(pb);
}
return error;
}
#define XFS_bdwrite(pb) \
pagebuf_iostart(pb, PBF_DELWRI | PBF_ASYNC)
static inline int xfs_bdwrite(void *mp, page_buf_t *bp)
{
bp->pb_strat = xfs_bdstrat_cb;
bp->pb_fspriv3 = mp;
return pagebuf_iostart(bp, PBF_DELWRI | PBF_ASYNC);
}
#define XFS_bdstrat(bp) pagebuf_iorequest(bp)
#define xfs_iowait(pb) pagebuf_iowait(pb)
/*
* Go through all incore buffers, and release buffers
* if they belong to the given device. This is used in
* filesystem error handling to preserve the consistency
* of its metadata.
*/
#define xfs_binval(buftarg) xfs_flush_buftarg(buftarg)
#define XFS_bflush(buftarg) xfs_flush_buftarg(buftarg)
#define xfs_incore_relse(buftarg,delwri_only,wait) \
xfs_relse_buftarg(buftarg)
#define xfs_baread(target, rablkno, ralen) \
pagebuf_readahead((target), (rablkno), (ralen), PBF_DONT_BLOCK)
#define xfs_buf_get_empty(len, target) pagebuf_get_empty((len), (target))
#define xfs_buf_get_noaddr(len, target) pagebuf_get_no_daddr((len), (target))
#define xfs_buf_free(bp) pagebuf_free(bp)
#endif /* __XFS_BUF_H__ */
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