1 files changed, 309 insertions, 0 deletions

diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
new file mode 100644
index 000000000000..1e8a45e74c3e
--- /dev/null
+++ b/fs/xfs/xfs_linux.h
@@ -0,0 +1,309 @@
+/*
+ * 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
+ */
+#ifndef __XFS_LINUX__
+#define __XFS_LINUX__
+
+#include <linux/types.h>
+
+/*
+ * XFS_BIG_BLKNOS needs block layer disk addresses to be 64 bits.
+ * XFS_BIG_INUMS requires XFS_BIG_BLKNOS to be set.
+ */
+#if defined(CONFIG_LBDAF) || (BITS_PER_LONG == 64)
+# define XFS_BIG_BLKNOS 1
+# define XFS_BIG_INUMS  1
+#else
+# define XFS_BIG_BLKNOS 0
+# define XFS_BIG_INUMS  0
+#endif
+
+#include "xfs_types.h"
+
+#include "kmem.h"
+#include "mrlock.h"
+#include "time.h"
+#include "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/sched.h>
+#include <linux/bitops.h>
+#include <linux/major.h>
+#include <linux/pagemap.h>
+#include <linux/vfs.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/proc_fs.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 <linux/capability.h>
+#include <linux/list_sort.h>
+
+#include <asm/page.h>
+#include <asm/div64.h>
+#include <asm/param.h>
+#include <asm/uaccess.h>
+#include <asm/byteorder.h>
+#include <asm/unaligned.h>
+
+#include "xfs_vnode.h"
+#include "xfs_stats.h"
+#include "xfs_sysctl.h"
+#include "xfs_iops.h"
+#include "xfs_aops.h"
+#include "xfs_super.h"
+#include "xfs_buf.h"
+#include "xfs_message.h"
+
+#ifdef __BIG_ENDIAN
+#define XFS_NATIVE_HOST 1
+#else
+#undef XFS_NATIVE_HOST
+#endif
+
+/*
+ * Feature macros (disable/enable)
+ */
+#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 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_error_level         xfs_params.error_level.val
+#define xfs_syncd_centisecs     xfs_params.syncd_timer.val
+#define xfs_stats_clear         xfs_params.stats_clear.val
+#define xfs_inherit_sync        xfs_params.inherit_sync.val
+#define xfs_inherit_nodump      xfs_params.inherit_nodump.val
+#define xfs_inherit_noatime     xfs_params.inherit_noatim.val
+#define xfs_buf_timer_centisecs xfs_params.xfs_buf_timer.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
+
+#define current_cpu()           (raw_smp_processor_id())
+#define current_pid()           (current->pid)
+#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 spinlock_destroy(lock)
+
+#define NBBY            8               /* number of bits per byte */
+
+/*
+ * Size of block device i/o is parameterized here.
+ * Currently the system supports page-sized i/o.
+ */
+#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)
+
+#define ENOATTR         ENODATA         /* Attribute not found */
+#define EWRONGFS        EINVAL          /* Mount with wrong filesystem type */
+#define EFSCORRUPTED    EUCLEAN         /* Filesystem is corrupted */
+
+#define SYNCHRONIZE()   barrier()
+#define __return_address __builtin_return_address(0)
+
+#define XFS_PROJID_DEFAULT      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))
+
+/*
+ * 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()
+
+
+/* Move the kernel do_div definition off to one side */
+
+#if defined __i386__
+/* For ia32 we need to pull some tricks to get past various versions
+ * of the compiler which do not like us using do_div in the middle
+ * of large functions.
+ */
+static inline __u32 xfs_do_div(void *a, __u32 b, int n)
+{
+        __u32   mod;
+
+        switch (n) {
+                case 4:
+                        mod = *(__u32 *)a % b;
+                        *(__u32 *)a = *(__u32 *)a / b;
+                        return mod;
+                case 8:
+                        {
+                        unsigned long __upper, __low, __high, __mod;
+                        __u64   c = *(__u64 *)a;
+                        __upper = __high = c >> 32;
+                        __low = c;
+                        if (__high) {
+                                __upper = __high % (b);
+                                __high = __high / (b);
+                        }
+                        asm("divl %2":"=a" (__low), "=d" (__mod):"rm" (b), "0" (__low), "1" (__upper));
+                        asm("":"=A" (c):"a" (__low),"d" (__high));
+                        *(__u64 *)a = c;
+                        return __mod;
+                        }
+        }
+
+        /* NOTREACHED */
+        return 0;
+}
+
+/* Side effect free 64 bit mod operation */
+static inline __u32 xfs_do_mod(void *a, __u32 b, int n)
+{
+        switch (n) {
+                case 4:
+                        return *(__u32 *)a % b;
+                case 8:
+                        {
+                        unsigned long __upper, __low, __high, __mod;
+                        __u64   c = *(__u64 *)a;
+                        __upper = __high = c >> 32;
+                        __low = c;
+                        if (__high) {
+                                __upper = __high % (b);
+                                __high = __high / (b);
+                        }
+                        asm("divl %2":"=a" (__low), "=d" (__mod):"rm" (b), "0" (__low), "1" (__upper));
+                        asm("":"=A" (c):"a" (__low),"d" (__high));
+                        return __mod;
+                        }
+        }
+
+        /* NOTREACHED */
+        return 0;
+}
+#else
+static inline __u32 xfs_do_div(void *a, __u32 b, int n)
+{
+        __u32   mod;
+
+        switch (n) {
+                case 4:
+                        mod = *(__u32 *)a % b;
+                        *(__u32 *)a = *(__u32 *)a / b;
+                        return mod;
+                case 8:
+                        mod = do_div(*(__u64 *)a, b);
+                        return mod;
+        }
+
+        /* NOTREACHED */
+        return 0;
+}
+
+/* Side effect free 64 bit mod operation */
+static inline __u32 xfs_do_mod(void *a, __u32 b, int n)
+{
+        switch (n) {
+                case 4:
+                        return *(__u32 *)a % b;
+                case 8:
+                        {
+                        __u64   c = *(__u64 *)a;
+                        return do_div(c, b);
+                        }
+        }
+
+        /* NOTREACHED */
+        return 0;
+}
+#endif
+
+#undef do_div
+#define do_div(a, b)    xfs_do_div(&(a), (b), sizeof(a))
+#define do_mod(a, b)    xfs_do_mod(&(a), (b), sizeof(a))
+
+static inline __uint64_t roundup_64(__uint64_t x, __uint32_t y)
+{
+        x += y - 1;
+        do_div(x, y);
+        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
+
+#define ASSERT_ALWAYS(expr)     \
+        (unlikely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
+
+#ifndef DEBUG
+#define ASSERT(expr)    ((void)0)
+
+#ifndef STATIC
+# define STATIC static noinline
+#endif
+
+#else /* DEBUG */
+
+#define ASSERT(expr)    \
+        (unlikely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
+
+#ifndef STATIC
+# define STATIC noinline
+#endif
+
+#endif /* DEBUG */
+
+#endif /* __XFS_LINUX__ */