mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 04:40:55 +07:00
e8edc6e03a
First thing mm.h does is including sched.h solely for can_do_mlock() inline function which has "current" dereference inside. By dealing with can_do_mlock() mm.h can be detached from sched.h which is good. See below, why. This patch a) removes unconditional inclusion of sched.h from mm.h b) makes can_do_mlock() normal function in mm/mlock.c c) exports can_do_mlock() to not break compilation d) adds sched.h inclusions back to files that were getting it indirectly. e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were getting them indirectly Net result is: a) mm.h users would get less code to open, read, preprocess, parse, ... if they don't need sched.h b) sched.h stops being dependency for significant number of files: on x86_64 allmodconfig touching sched.h results in recompile of 4083 files, after patch it's only 3744 (-8.3%). Cross-compile tested on all arm defconfigs, all mips defconfigs, all powerpc defconfigs, alpha alpha-up arm i386 i386-up i386-defconfig i386-allnoconfig ia64 ia64-up m68k mips parisc parisc-up powerpc powerpc-up s390 s390-up sparc sparc-up sparc64 sparc64-up um-x86_64 x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig as well as my two usual configs. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
78 lines
1.5 KiB
C
78 lines
1.5 KiB
C
/*
|
|
* Task I/O accounting operations
|
|
*/
|
|
#ifndef __TASK_IO_ACCOUNTING_OPS_INCLUDED
|
|
#define __TASK_IO_ACCOUNTING_OPS_INCLUDED
|
|
|
|
#include <linux/sched.h>
|
|
|
|
#ifdef CONFIG_TASK_IO_ACCOUNTING
|
|
static inline void task_io_account_read(size_t bytes)
|
|
{
|
|
current->ioac.read_bytes += bytes;
|
|
}
|
|
|
|
/*
|
|
* We approximate number of blocks, because we account bytes only.
|
|
* A 'block' is 512 bytes
|
|
*/
|
|
static inline unsigned long task_io_get_inblock(const struct task_struct *p)
|
|
{
|
|
return p->ioac.read_bytes >> 9;
|
|
}
|
|
|
|
static inline void task_io_account_write(size_t bytes)
|
|
{
|
|
current->ioac.write_bytes += bytes;
|
|
}
|
|
|
|
/*
|
|
* We approximate number of blocks, because we account bytes only.
|
|
* A 'block' is 512 bytes
|
|
*/
|
|
static inline unsigned long task_io_get_oublock(const struct task_struct *p)
|
|
{
|
|
return p->ioac.write_bytes >> 9;
|
|
}
|
|
|
|
static inline void task_io_account_cancelled_write(size_t bytes)
|
|
{
|
|
current->ioac.cancelled_write_bytes += bytes;
|
|
}
|
|
|
|
static inline void task_io_accounting_init(struct task_struct *tsk)
|
|
{
|
|
memset(&tsk->ioac, 0, sizeof(tsk->ioac));
|
|
}
|
|
|
|
#else
|
|
|
|
static inline void task_io_account_read(size_t bytes)
|
|
{
|
|
}
|
|
|
|
static inline unsigned long task_io_get_inblock(const struct task_struct *p)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void task_io_account_write(size_t bytes)
|
|
{
|
|
}
|
|
|
|
static inline unsigned long task_io_get_oublock(const struct task_struct *p)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void task_io_account_cancelled_write(size_t bytes)
|
|
{
|
|
}
|
|
|
|
static inline void task_io_accounting_init(struct task_struct *tsk)
|
|
{
|
|
}
|
|
|
|
#endif /* CONFIG_TASK_IO_ACCOUNTING */
|
|
#endif /* __TASK_IO_ACCOUNTING_OPS_INCLUDED */
|