mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-22 19:54:40 +07:00
6ad5b3255b
The xfs_buf structure is basically used as a glorified container for a memory allocation in the log recovery code. Replace it with a call to kmem_alloc_large and a simple abstraction to read into or write from it synchronously using chained bios. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
276 lines
7.2 KiB
C
276 lines
7.2 KiB
C
// 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 <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_eofb_secs xfs_params.eofb_timer.val
|
|
#define xfs_cowb_secs xfs_params.cowb_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 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 SYNCHRONIZE() barrier()
|
|
#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;
|
|
|
|
/* Kernel uid/gid conversion. These are used to convert to/from the on disk
|
|
* uid_t/gid_t types to the kuid_t/kgid_t types that the kernel uses internally.
|
|
* The conversion here is type only, the value will remain the same since we
|
|
* are converting to the init_user_ns. The uid is later mapped to a particular
|
|
* user namespace value when crossing the kernel/user boundary.
|
|
*/
|
|
static inline uint32_t xfs_kuid_to_uid(kuid_t uid)
|
|
{
|
|
return from_kuid(&init_user_ns, uid);
|
|
}
|
|
|
|
static inline kuid_t xfs_uid_to_kuid(uint32_t uid)
|
|
{
|
|
return make_kuid(&init_user_ns, uid);
|
|
}
|
|
|
|
static inline uint32_t xfs_kgid_to_gid(kgid_t gid)
|
|
{
|
|
return from_kgid(&init_user_ns, gid);
|
|
}
|
|
|
|
static inline kgid_t xfs_gid_to_kgid(uint32_t gid)
|
|
{
|
|
return make_kgid(&init_user_ns, gid);
|
|
}
|
|
|
|
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 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(#expr, __FILE__, __LINE__))
|
|
|
|
#ifdef DEBUG
|
|
#define ASSERT(expr) \
|
|
(likely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
|
|
|
|
#else /* !DEBUG */
|
|
|
|
#ifdef XFS_WARN
|
|
|
|
#define ASSERT(expr) \
|
|
(likely(expr) ? (void)0 : asswarn(#expr, __FILE__, __LINE__))
|
|
|
|
#else /* !DEBUG && !XFS_WARN */
|
|
|
|
#define ASSERT(expr) ((void)0)
|
|
|
|
#endif /* XFS_WARN */
|
|
#endif /* DEBUG */
|
|
|
|
#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_d.di_flags & 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__ */
|