/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
+ * 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 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
*/
#ifndef __XFS_LINUX__
#define __XFS_LINUX__
#include <linux/types.h>
-#include <linux/config.h>
/*
- * Some types are conditional depending on the target system.
* XFS_BIG_BLKNOS needs block layer disk addresses to be 64 bits.
- * XFS_BIG_INUMS needs the VFS inode number to be 64 bits, as well
- * as requiring XFS_BIG_BLKNOS to be set.
+ * XFS_BIG_INUMS requires XFS_BIG_BLKNOS to be set.
*/
-#if defined(CONFIG_LBD) || (BITS_PER_LONG == 64)
+#if defined(CONFIG_LBDAF) || (BITS_PER_LONG == 64)
# define XFS_BIG_BLKNOS 1
-# if BITS_PER_LONG == 64
-# define XFS_BIG_INUMS 1
-# else
-# define XFS_BIG_INUMS 0
-# endif
+# define XFS_BIG_INUMS 1
#else
# define XFS_BIG_BLKNOS 0
# define XFS_BIG_INUMS 0
#include <kmem.h>
#include <mrlock.h>
-#include <spin.h>
#include <sv.h>
-#include <mutex.h>
-#include <sema.h>
#include <time.h>
#include <support/ktrace.h>
#include <support/debug.h>
-#include <support/move.h>
#include <support/uuid.h>
+#include <linux/semaphore.h>
#include <linux/mm.h>
#include <linux/kernel.h>
#include <linux/blkdev.h>
#include <linux/slab.h>
#include <linux/module.h>
+#include <linux/mutex.h>
#include <linux/file.h>
#include <linux/swap.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/proc_fs.h>
-#include <linux/version.h>
#include <linux/sort.h>
+#include <linux/cpu.h>
+#include <linux/notifier.h>
+#include <linux/delay.h>
+#include <linux/log2.h>
+#include <linux/spinlock.h>
+#include <linux/random.h>
+#include <linux/ctype.h>
+#include <linux/writeback.h>
#include <asm/page.h>
#include <asm/div64.h>
#include <asm/byteorder.h>
#include <asm/unaligned.h>
-#include <xfs_behavior.h>
-#include <xfs_vfs.h>
#include <xfs_cred.h>
#include <xfs_vnode.h>
#include <xfs_stats.h>
/*
* Feature macros (disable/enable)
*/
-#undef HAVE_REFCACHE /* reference cache not needed for NFS in 2.6 */
-#define HAVE_SENDFILE /* sendfile(2) exists in 2.6, but not in 2.4 */
-
-/*
- * State flag for unwritten extent buffers.
- *
- * We need to be able to distinguish between these and delayed
- * allocate buffers within XFS. The generic IO path code does
- * not need to distinguish - we use the BH_Delay flag for both
- * delalloc and these ondisk-uninitialised buffers.
- */
-BUFFER_FNS(PrivateStart, unwritten);
-static inline void set_buffer_unwritten_io(struct buffer_head *bh)
-{
- bh->b_end_io = linvfs_unwritten_done;
-}
+#ifdef CONFIG_SMP
+#define HAVE_PERCPU_SB /* per cpu superblock counters are a 2.6 feature */
+#else
+#undef HAVE_PERCPU_SB /* per cpu superblock counters are a 2.6 feature */
+#endif
-#define restricted_chown xfs_params.restrict_chown.val
#define irix_sgid_inherit xfs_params.sgid_inherit.val
#define irix_symlink_mode xfs_params.symlink_mode.val
#define xfs_panic_mask xfs_params.panic_mask.val
#define xfs_buf_age_centisecs xfs_params.xfs_buf_age.val
#define xfs_inherit_nosymlinks xfs_params.inherit_nosym.val
#define xfs_rotorstep xfs_params.rotorstep.val
+#define xfs_inherit_nodefrag xfs_params.inherit_nodfrg.val
+#define xfs_fstrm_centisecs xfs_params.fstrm_timer.val
-#ifndef raw_smp_processor_id
-#define raw_smp_processor_id() smp_processor_id()
-#endif
-#define current_cpu() raw_smp_processor_id()
+#define current_cpu() (raw_smp_processor_id())
#define current_pid() (current->pid)
-#define current_fsuid(cred) (current->fsuid)
-#define current_fsgid(cred) (current->fsgid)
+#define current_test_flags(f) (current->flags & (f))
+#define current_set_flags_nested(sp, f) \
+ (*(sp) = current->flags, current->flags |= (f))
+#define current_clear_flags_nested(sp, f) \
+ (*(sp) = current->flags, current->flags &= ~(f))
+#define current_restore_flags_nested(sp, f) \
+ (current->flags = ((current->flags & ~(f)) | (*(sp) & (f))))
-#define NBPP PAGE_SIZE
-#define DPPSHFT (PAGE_SHIFT - 9)
-#define NDPP (1 << (PAGE_SHIFT - 9))
-#define dtop(DD) (((DD) + NDPP - 1) >> DPPSHFT)
-#define dtopt(DD) ((DD) >> DPPSHFT)
-#define dpoff(DD) ((DD) & (NDPP-1))
+#define spinlock_destroy(lock)
#define NBBY 8 /* number of bits per byte */
-#define NBPC PAGE_SIZE /* Number of bytes per click */
-#define BPCSHIFT PAGE_SHIFT /* LOG2(NBPC) if exact */
/*
* Size of block device i/o is parameterized here.
* Currently the system supports page-sized i/o.
*/
-#define BLKDEV_IOSHIFT BPCSHIFT
+#define BLKDEV_IOSHIFT PAGE_CACHE_SHIFT
#define BLKDEV_IOSIZE (1<<BLKDEV_IOSHIFT)
/* number of BB's per block device block */
#define BLKDEV_BB BTOBB(BLKDEV_IOSIZE)
-/* bytes to clicks */
-#define btoc(x) (((__psunsigned_t)(x)+(NBPC-1))>>BPCSHIFT)
-#define btoct(x) ((__psunsigned_t)(x)>>BPCSHIFT)
-#define btoc64(x) (((__uint64_t)(x)+(NBPC-1))>>BPCSHIFT)
-#define btoct64(x) ((__uint64_t)(x)>>BPCSHIFT)
-#define io_btoc(x) (((__psunsigned_t)(x)+(IO_NBPC-1))>>IO_BPCSHIFT)
-#define io_btoct(x) ((__psunsigned_t)(x)>>IO_BPCSHIFT)
-
-/* off_t bytes to clicks */
-#define offtoc(x) (((__uint64_t)(x)+(NBPC-1))>>BPCSHIFT)
-#define offtoct(x) ((xfs_off_t)(x)>>BPCSHIFT)
-
-/* clicks to off_t bytes */
-#define ctooff(x) ((xfs_off_t)(x)<<BPCSHIFT)
-
-/* clicks to bytes */
-#define ctob(x) ((__psunsigned_t)(x)<<BPCSHIFT)
-#define btoct(x) ((__psunsigned_t)(x)>>BPCSHIFT)
-#define ctob64(x) ((__uint64_t)(x)<<BPCSHIFT)
-#define io_ctob(x) ((__psunsigned_t)(x)<<IO_BPCSHIFT)
-
-/* bytes to clicks */
-#define btoc(x) (((__psunsigned_t)(x)+(NBPC-1))>>BPCSHIFT)
-
-#ifndef CELL_CAPABLE
-#define FSC_NOTIFY_NAME_CHANGED(vp)
-#endif
-
-#ifndef ENOATTR
#define ENOATTR ENODATA /* Attribute not found */
-#endif
-
-/* Note: EWRONGFS never visible outside the kernel */
-#define EWRONGFS EINVAL /* Mount with wrong filesystem type */
-
-/*
- * XXX EFSCORRUPTED needs a real value in errno.h. asm-i386/errno.h won't
- * return codes out of its known range in errno.
- * XXX Also note: needs to be < 1000 and fairly unique on Linux (mustn't
- * conflict with any code we use already or any code a driver may use)
- * XXX Some options (currently we do #2):
- * 1/ New error code ["Filesystem is corrupted", _after_ glibc updated]
- * 2/ 990 ["Unknown error 990"]
- * 3/ EUCLEAN ["Structure needs cleaning"]
- * 4/ Convert EFSCORRUPTED to EIO [just prior to return into userspace]
- */
-#define EFSCORRUPTED 990 /* Filesystem is corrupted */
+#define EWRONGFS EINVAL /* Mount with wrong filesystem type */
+#define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
#define SYNCHRONIZE() barrier()
#define __return_address __builtin_return_address(0)
-/*
- * IRIX (BSD) quotactl makes use of separate commands for user/group,
- * whereas on Linux the syscall encodes this information into the cmd
- * field (see the QCMD macro in quota.h). These macros help keep the
- * code portable - they are not visible from the syscall interface.
- */
-#define Q_XSETGQLIM XQM_CMD(8) /* set groups disk limits */
-#define Q_XGETGQUOTA XQM_CMD(9) /* get groups disk limits */
-#define Q_XSETPQLIM XQM_CMD(10) /* set projects disk limits */
-#define Q_XGETPQUOTA XQM_CMD(11) /* get projects disk limits */
-
-/* IRIX uses a dynamic sizing algorithm (ndquot = 200 + numprocs*2) */
-/* we may well need to fine-tune this if it ever becomes an issue. */
-#define DQUOT_MAX_HEURISTIC 1024 /* NR_DQUOTS */
-#define ndquot DQUOT_MAX_HEURISTIC
-
-/* IRIX uses the current size of the name cache to guess a good value */
-/* - this isn't the same but is a good enough starting point for now. */
-#define DQUOT_HASH_HEURISTIC files_stat.nr_files
-
-/* IRIX inodes maintain the project ID also, zero this field on Linux */
-#define DEFAULT_PROJID 0
-#define dfltprid DEFAULT_PROJID
-
+#define dfltprid 0
#define MAXPATHLEN 1024
#define MIN(a,b) (min(a,b))
#define MAX(a,b) (max(a,b))
#define howmany(x, y) (((x)+((y)-1))/(y))
-#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
-#define qsort(a,n,s,fn) sort(a,n,s,fn,NULL)
/*
* Various platform dependent calls that don't fit anywhere else
*/
+#define xfs_sort(a,n,s,fn) sort(a,n,s,fn,NULL)
#define xfs_stack_trace() dump_stack()
#define xfs_itruncate_data(ip, off) \
- (-vmtruncate(LINVFS_GET_IP(XFS_ITOV(ip)), (off)))
-#define xfs_statvfs_fsid(statp, mp) \
- ({ u64 id = huge_encode_dev((mp)->m_dev); \
- __kernel_fsid_t *fsid = &(statp)->f_fsid; \
- (fsid->val[0] = (u32)id, fsid->val[1] = (u32)(id >> 32)); })
+ (-vmtruncate(VFS_I(ip), (off)))
/* Move the kernel do_div definition off to one side */
return(x * y);
}
+static inline __uint64_t howmany_64(__uint64_t x, __uint32_t y)
+{
+ x += y - 1;
+ do_div(x, y);
+ return x;
+}
+
+/* ARM old ABI has some weird alignment/padding */
+#if defined(__arm__) && !defined(__ARM_EABI__)
+#define __arch_pack __attribute__((packed))
+#else
+#define __arch_pack
+#endif
+
#endif /* __XFS_LINUX__ */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff