// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2000-2005 Silicon Graphics, Inc. * All Rights Reserved. */ #ifndef __XFS_LINUX__ #define __XFS_LINUX__ #include <linux/types.h> #include <linux/uuid.h> /* * Kernel specific type declarations for XFS */ typedef __s64 xfs_off_t; /* <file offset> type */ typedef unsigned long long xfs_ino_t; /* <inode> type */ typedef __s64 xfs_daddr_t; /* <disk address> type */ typedef __u32 xfs_dev_t; typedef __u32 xfs_nlink_t; #include "xfs_types.h" #include "kmem.h" #include "mrlock.h" #include <linux/semaphore.h> #include <linux/mm.h> #include <linux/sched/mm.h> #include <linux/kernel.h> #include <linux/blkdev.h> #include <linux/slab.h> #include <linux/crc32c.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/file.h> #include <linux/swap.h> #include <linux/errno.h> #include <linux/sched/signal.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/kthread.h> #include <linux/freezer.h> #include <linux/list_sort.h> #include <linux/ratelimit.h> #include <linux/rhashtable.h> #include <linux/xattr.h> #include <linux/mnt_idmapping.h> #include <asm/page.h> #include <asm/div64.h> #include <asm/param.h> #include <linux/uaccess.h> #include <asm/byteorder.h> #include <asm/unaligned.h> #include "xfs_fs.h" #include "xfs_stats.h" #include "xfs_sysctl.h" #include "xfs_iops.h" #include "xfs_aops.h" #include "xfs_super.h" #include "xfs_cksum.h" #include "xfs_buf.h" #include "xfs_message.h" #ifdef __BIG_ENDIAN #define XFS_NATIVE_HOST 1 #else #undef XFS_NATIVE_HOST #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_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 xfs_blockgc_secs xfs_params.blockgc_timer.val #define current_cpu() (raw_smp_processor_id()) #define current_set_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 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_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 EFSBADCRC EBADMSG /* Bad CRC detected */ #define __return_address __builtin_return_address(0) /* * Return the address of a label. Use barrier() so that the optimizer * won't reorder code to refactor the error jumpouts into a single * return, which throws off the reported address. */ #define __this_address ({ __label__ __here; __here: barrier(); &&__here; }) #define XFS_PROJID_DEFAULT 0 #define howmany(x, y) (((x)+((y)-1))/(y)) static inline void delay(long ticks) { schedule_timeout_uninterruptible(ticks); } /* * XFS wrapper structure for sysfs support. It depends on external data * structures and is embedded in various internal data structures to implement * the XFS sysfs object heirarchy. Define it here for broad access throughout * the codebase. */ struct xfs_kobj { struct kobject kobject; struct completion complete; }; struct xstats { struct xfsstats __percpu *xs_stats; struct xfs_kobj xs_kobj; }; extern struct xstats xfsstats; static inline dev_t xfs_to_linux_dev_t(xfs_dev_t dev) { return MKDEV(sysv_major(dev) & 0x1ff, sysv_minor(dev)); } static inline xfs_dev_t linux_to_xfs_dev_t(dev_t dev) { return sysv_encode_dev(dev); } /* * 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() static inline uint64_t rounddown_64(uint64_t x, uint32_t y) { do_div(x, y); return x * y; } 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; } int xfs_rw_bdev(struct block_device *bdev, sector_t sector, unsigned int count, char *data, unsigned int op); #define ASSERT_ALWAYS(expr) \ (likely(expr) ? (void)0 : assfail(NULL, #expr, __FILE__, __LINE__)) #ifdef DEBUG #define ASSERT(expr) \ (likely(expr) ? (void)0 : assfail(NULL, #expr, __FILE__, __LINE__)) #else /* !DEBUG */ #ifdef XFS_WARN #define ASSERT(expr) \ (likely(expr) ? (void)0 : asswarn(NULL, #expr, __FILE__, __LINE__)) #else /* !DEBUG && !XFS_WARN */ #define ASSERT(expr) ((void)0) #endif /* XFS_WARN */ #endif /* DEBUG */ #define XFS_IS_CORRUPT(mp, expr) \ (unlikely(expr) ? xfs_corruption_error(#expr, XFS_ERRLEVEL_LOW, (mp), \ NULL, 0, __FILE__, __LINE__, \ __this_address), \ true : false) #define STATIC static noinline #ifdef CONFIG_XFS_RT /* * make sure we ignore the inode flag if the filesystem doesn't have a * configured realtime device. */ #define XFS_IS_REALTIME_INODE(ip) \ (((ip)->i_diflags & XFS_DIFLAG_REALTIME) && \ (ip)->i_mount->m_rtdev_targp) #define XFS_IS_REALTIME_MOUNT(mp) ((mp)->m_rtdev_targp ? 1 : 0) #else #define XFS_IS_REALTIME_INODE(ip) (0) #define XFS_IS_REALTIME_MOUNT(mp) (0) #endif /* * Starting in Linux 4.15, the %p (raw pointer value) printk modifier * prints a hashed version of the pointer to avoid leaking kernel * pointers into dmesg. If we're trying to debug the kernel we want the * raw values, so override this behavior as best we can. */ #ifdef DEBUG # define PTR_FMT "%px" #else # define PTR_FMT "%p" #endif #endif /* __XFS_LINUX__ */