Greg Kroah-Hartman
6bb6361296
This reverts commit ad4b32c45d as it
conflicts with upstream changes in 6.13-rc1. If this is still really
needed, it can come back after 6.13-rc1 is merged, but really, this
whole uid_sys_stats thing should just be a bpf program instead of this
constantly-out-of-tree code that has merge conflicts all the time...
Bug: 120442023
Cc: Jin Qian <jinqian@google.com>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: Alistair Strachan <astrachan@google.com>
Change-Id: I459a66abdeea936ce88e58e17d64e9e657c4e7ec
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
115 lines
2.5 KiB
C
115 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* 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_io_accounting *ioac)
|
|
{
|
|
memset(ioac, 0, sizeof(*ioac));
|
|
}
|
|
|
|
static inline void task_blk_io_accounting_add(struct task_io_accounting *dst,
|
|
struct task_io_accounting *src)
|
|
{
|
|
dst->read_bytes += src->read_bytes;
|
|
dst->write_bytes += src->write_bytes;
|
|
dst->cancelled_write_bytes += src->cancelled_write_bytes;
|
|
}
|
|
|
|
#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_io_accounting *ioac)
|
|
{
|
|
}
|
|
|
|
static inline void task_blk_io_accounting_add(struct task_io_accounting *dst,
|
|
struct task_io_accounting *src)
|
|
{
|
|
}
|
|
|
|
#endif /* CONFIG_TASK_IO_ACCOUNTING */
|
|
|
|
#ifdef CONFIG_TASK_XACCT
|
|
static inline void task_chr_io_accounting_add(struct task_io_accounting *dst,
|
|
struct task_io_accounting *src)
|
|
{
|
|
dst->rchar += src->rchar;
|
|
dst->wchar += src->wchar;
|
|
dst->syscr += src->syscr;
|
|
dst->syscw += src->syscw;
|
|
}
|
|
#else
|
|
static inline void task_chr_io_accounting_add(struct task_io_accounting *dst,
|
|
struct task_io_accounting *src)
|
|
{
|
|
}
|
|
#endif /* CONFIG_TASK_XACCT */
|
|
|
|
static inline void task_io_accounting_add(struct task_io_accounting *dst,
|
|
struct task_io_accounting *src)
|
|
{
|
|
task_chr_io_accounting_add(dst, src);
|
|
task_blk_io_accounting_add(dst, src);
|
|
}
|
|
#endif /* __TASK_IO_ACCOUNTING_OPS_INCLUDED */
|