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256 lines
6.5 KiB
256 lines
6.5 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Copyright (c) 2000-2005 Silicon Graphics, Inc. |
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* All Rights Reserved. |
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*/ |
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#ifndef __XFS_LINUX__ |
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#define __XFS_LINUX__ |
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#include <linux/types.h> |
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#include <linux/uuid.h> |
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/* |
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* Kernel specific type declarations for XFS |
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*/ |
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typedef __s64 xfs_off_t; /* <file offset> type */ |
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typedef unsigned long long xfs_ino_t; /* <inode> type */ |
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typedef __s64 xfs_daddr_t; /* <disk address> type */ |
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typedef __u32 xfs_dev_t; |
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typedef __u32 xfs_nlink_t; |
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#include "xfs_types.h" |
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#include "kmem.h" |
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#include "mrlock.h" |
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#include <linux/semaphore.h> |
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#include <linux/mm.h> |
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#include <linux/sched/mm.h> |
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#include <linux/kernel.h> |
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#include <linux/blkdev.h> |
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#include <linux/slab.h> |
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#include <linux/crc32c.h> |
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#include <linux/module.h> |
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#include <linux/mutex.h> |
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#include <linux/file.h> |
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#include <linux/swap.h> |
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#include <linux/errno.h> |
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#include <linux/sched/signal.h> |
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#include <linux/bitops.h> |
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#include <linux/major.h> |
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#include <linux/pagemap.h> |
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#include <linux/vfs.h> |
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#include <linux/seq_file.h> |
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#include <linux/init.h> |
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#include <linux/list.h> |
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#include <linux/proc_fs.h> |
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#include <linux/sort.h> |
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#include <linux/cpu.h> |
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#include <linux/notifier.h> |
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#include <linux/delay.h> |
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#include <linux/log2.h> |
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#include <linux/spinlock.h> |
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#include <linux/random.h> |
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#include <linux/ctype.h> |
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#include <linux/writeback.h> |
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#include <linux/capability.h> |
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#include <linux/kthread.h> |
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#include <linux/freezer.h> |
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#include <linux/list_sort.h> |
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#include <linux/ratelimit.h> |
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#include <linux/rhashtable.h> |
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#include <linux/xattr.h> |
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#include <asm/page.h> |
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#include <asm/div64.h> |
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#include <asm/param.h> |
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#include <linux/uaccess.h> |
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#include <asm/byteorder.h> |
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#include <asm/unaligned.h> |
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#include "xfs_fs.h" |
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#include "xfs_stats.h" |
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#include "xfs_sysctl.h" |
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#include "xfs_iops.h" |
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#include "xfs_aops.h" |
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#include "xfs_super.h" |
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#include "xfs_cksum.h" |
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#include "xfs_buf.h" |
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#include "xfs_message.h" |
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#ifdef __BIG_ENDIAN |
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#define XFS_NATIVE_HOST 1 |
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#else |
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#undef XFS_NATIVE_HOST |
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#endif |
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#define irix_sgid_inherit xfs_params.sgid_inherit.val |
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#define irix_symlink_mode xfs_params.symlink_mode.val |
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#define xfs_panic_mask xfs_params.panic_mask.val |
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#define xfs_error_level xfs_params.error_level.val |
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#define xfs_syncd_centisecs xfs_params.syncd_timer.val |
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#define xfs_stats_clear xfs_params.stats_clear.val |
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#define xfs_inherit_sync xfs_params.inherit_sync.val |
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#define xfs_inherit_nodump xfs_params.inherit_nodump.val |
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#define xfs_inherit_noatime xfs_params.inherit_noatim.val |
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#define xfs_inherit_nosymlinks xfs_params.inherit_nosym.val |
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#define xfs_rotorstep xfs_params.rotorstep.val |
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#define xfs_inherit_nodefrag xfs_params.inherit_nodfrg.val |
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#define xfs_fstrm_centisecs xfs_params.fstrm_timer.val |
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#define xfs_blockgc_secs xfs_params.blockgc_timer.val |
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#define current_cpu() (raw_smp_processor_id()) |
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#define current_set_flags_nested(sp, f) \ |
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(*(sp) = current->flags, current->flags |= (f)) |
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#define current_restore_flags_nested(sp, f) \ |
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(current->flags = ((current->flags & ~(f)) | (*(sp) & (f)))) |
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#define NBBY 8 /* number of bits per byte */ |
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/* |
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* Size of block device i/o is parameterized here. |
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* Currently the system supports page-sized i/o. |
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*/ |
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#define BLKDEV_IOSHIFT PAGE_SHIFT |
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#define BLKDEV_IOSIZE (1<<BLKDEV_IOSHIFT) |
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/* number of BB's per block device block */ |
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#define BLKDEV_BB BTOBB(BLKDEV_IOSIZE) |
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#define ENOATTR ENODATA /* Attribute not found */ |
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#define EWRONGFS EINVAL /* Mount with wrong filesystem type */ |
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#define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */ |
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#define EFSBADCRC EBADMSG /* Bad CRC detected */ |
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#define __return_address __builtin_return_address(0) |
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/* |
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* Return the address of a label. Use barrier() so that the optimizer |
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* won't reorder code to refactor the error jumpouts into a single |
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* return, which throws off the reported address. |
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*/ |
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#define __this_address ({ __label__ __here; __here: barrier(); &&__here; }) |
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#define XFS_PROJID_DEFAULT 0 |
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#define howmany(x, y) (((x)+((y)-1))/(y)) |
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static inline void delay(long ticks) |
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{ |
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schedule_timeout_uninterruptible(ticks); |
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} |
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/* |
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* XFS wrapper structure for sysfs support. It depends on external data |
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* structures and is embedded in various internal data structures to implement |
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* the XFS sysfs object heirarchy. Define it here for broad access throughout |
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* the codebase. |
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*/ |
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struct xfs_kobj { |
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struct kobject kobject; |
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struct completion complete; |
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}; |
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struct xstats { |
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struct xfsstats __percpu *xs_stats; |
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struct xfs_kobj xs_kobj; |
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}; |
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extern struct xstats xfsstats; |
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static inline dev_t xfs_to_linux_dev_t(xfs_dev_t dev) |
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{ |
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return MKDEV(sysv_major(dev) & 0x1ff, sysv_minor(dev)); |
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} |
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static inline xfs_dev_t linux_to_xfs_dev_t(dev_t dev) |
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{ |
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return sysv_encode_dev(dev); |
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} |
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/* |
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* Various platform dependent calls that don't fit anywhere else |
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*/ |
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#define xfs_sort(a,n,s,fn) sort(a,n,s,fn,NULL) |
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#define xfs_stack_trace() dump_stack() |
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static inline uint64_t rounddown_64(uint64_t x, uint32_t y) |
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{ |
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do_div(x, y); |
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return x * y; |
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} |
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static inline uint64_t roundup_64(uint64_t x, uint32_t y) |
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{ |
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x += y - 1; |
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do_div(x, y); |
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return x * y; |
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} |
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static inline uint64_t howmany_64(uint64_t x, uint32_t y) |
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{ |
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x += y - 1; |
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do_div(x, y); |
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return x; |
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} |
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int xfs_rw_bdev(struct block_device *bdev, sector_t sector, unsigned int count, |
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char *data, unsigned int op); |
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#define ASSERT_ALWAYS(expr) \ |
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(likely(expr) ? (void)0 : assfail(NULL, #expr, __FILE__, __LINE__)) |
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#ifdef DEBUG |
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#define ASSERT(expr) \ |
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(likely(expr) ? (void)0 : assfail(NULL, #expr, __FILE__, __LINE__)) |
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#else /* !DEBUG */ |
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#ifdef XFS_WARN |
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#define ASSERT(expr) \ |
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(likely(expr) ? (void)0 : asswarn(NULL, #expr, __FILE__, __LINE__)) |
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#else /* !DEBUG && !XFS_WARN */ |
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#define ASSERT(expr) ((void)0) |
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#endif /* XFS_WARN */ |
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#endif /* DEBUG */ |
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#define XFS_IS_CORRUPT(mp, expr) \ |
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(unlikely(expr) ? xfs_corruption_error(#expr, XFS_ERRLEVEL_LOW, (mp), \ |
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NULL, 0, __FILE__, __LINE__, \ |
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__this_address), \ |
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true : false) |
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#define STATIC static noinline |
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#ifdef CONFIG_XFS_RT |
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/* |
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* make sure we ignore the inode flag if the filesystem doesn't have a |
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* configured realtime device. |
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*/ |
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#define XFS_IS_REALTIME_INODE(ip) \ |
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(((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME) && \ |
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(ip)->i_mount->m_rtdev_targp) |
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#define XFS_IS_REALTIME_MOUNT(mp) ((mp)->m_rtdev_targp ? 1 : 0) |
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#else |
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#define XFS_IS_REALTIME_INODE(ip) (0) |
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#define XFS_IS_REALTIME_MOUNT(mp) (0) |
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#endif |
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/* |
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* Starting in Linux 4.15, the %p (raw pointer value) printk modifier |
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* prints a hashed version of the pointer to avoid leaking kernel |
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* pointers into dmesg. If we're trying to debug the kernel we want the |
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* raw values, so override this behavior as best we can. |
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*/ |
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#ifdef DEBUG |
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# define PTR_FMT "%px" |
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#else |
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# define PTR_FMT "%p" |
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#endif |
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#endif /* __XFS_LINUX__ */
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