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Tip revision: 94a05509a9e11806acd797153d03019706e466f1 authored by Linus Torvalds on 15 April 2007, 23:50:57 UTC
Linux 2.6.21-rc7
Tip revision: 94a0550
task_io_accounting_ops.h
/*
 * Task I/O accounting operations
 */
#ifndef __TASK_IO_ACCOUNTING_OPS_INCLUDED
#define __TASK_IO_ACCOUNTING_OPS_INCLUDED

#ifdef CONFIG_TASK_IO_ACCOUNTING
static inline void task_io_account_read(size_t bytes)
{
	current->ioac.read_bytes += bytes;
}

static inline void task_io_account_write(size_t bytes)
{
	current->ioac.write_bytes += bytes;
}

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 void task_io_account_write(size_t bytes)
{
}

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 */
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