lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

task IO accounting: move all IO statistics in struct task_io_accounting

Browse Source 
Simplify the code of include/linux/task_io_accounting.h.

It is also more reasonable to have all the task i/o-related statistics in a
single struct (task_io_accounting).

Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrea Righi
2008-07-28 00:48:12 +02:00
committed by Linus Torvalds
parent 837b41b5de
commit 940389b8af
5 changed files with 44 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
include/linux/task_io_accounting_ops.h
View File

@@ -9,7 +9,7 @@
#ifdef CONFIG_TASK_IO_ACCOUNTING
static inline void task_io_account_read(size_t bytes)
{
current->ioac.blk.read_bytes += bytes;
current->ioac.read_bytes += bytes;
}
/*
@@ -18,12 +18,12 @@ static inline void task_io_account_read(size_t bytes)
*/
static inline unsigned long task_io_get_inblock(const struct task_struct *p)
{
return p->ioac.blk.read_bytes >> 9;
return p->ioac.read_bytes >> 9;
}
static inline void task_io_account_write(size_t bytes)
{
current->ioac.blk.write_bytes += bytes;
current->ioac.write_bytes += bytes;
}
/*
@@ -32,25 +32,25 @@ static inline void task_io_account_write(size_t bytes)
*/
static inline unsigned long task_io_get_oublock(const struct task_struct *p)
{
return p->ioac.blk.write_bytes >> 9;
return p->ioac.write_bytes >> 9;
}
static inline void task_io_account_cancelled_write(size_t bytes)
{
current->ioac.blk.cancelled_write_bytes += bytes;
current->ioac.cancelled_write_bytes += bytes;
}
static inline void task_io_accounting_init(struct proc_io_accounting *ioac)
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 proc_io_accounting *dst,
struct proc_io_accounting *src)
static inline void task_blk_io_accounting_add(struct task_io_accounting *dst,
struct task_io_accounting *src)
{
dst->blk.read_bytes += src->blk.read_bytes;
dst->blk.write_bytes += src->blk.write_bytes;
dst->blk.cancelled_write_bytes += src->blk.cancelled_write_bytes;
dst->read_bytes += src->read_bytes;
dst->write_bytes += src->write_bytes;
dst->cancelled_write_bytes += src->cancelled_write_bytes;
}
#else
@@ -77,35 +77,35 @@ static inline void task_io_account_cancelled_write(size_t bytes)
{
}
static inline void task_io_accounting_init(struct proc_io_accounting *ioac)
static inline void task_io_accounting_init(struct task_io_accounting *ioac)
{
}
static inline void task_blk_io_accounting_add(struct proc_io_accounting *dst,
struct proc_io_accounting *src)
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 proc_io_accounting *dst,
struct proc_io_accounting *src)
static inline void task_chr_io_accounting_add(struct task_io_accounting *dst,
struct task_io_accounting *src)
{
dst->chr.rchar += src->chr.rchar;
dst->chr.wchar += src->chr.wchar;
dst->chr.syscr += src->chr.syscr;
dst->chr.syscw += src->chr.syscw;
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 proc_io_accounting *dst,
struct proc_io_accounting *src)
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 proc_io_accounting *dst,
struct proc_io_accounting *src)
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);