2 * Task I/O accounting operations
4 #ifndef __TASK_IO_ACCOUNTING_OPS_INCLUDED
5 #define __TASK_IO_ACCOUNTING_OPS_INCLUDED
7 #ifdef CONFIG_TASK_IO_ACCOUNTING
8 static inline void task_io_account_read(size_t bytes
)
10 current
->ioac
.read_bytes
+= bytes
;
14 * We approximate number of blocks, because we account bytes only.
15 * A 'block' is 512 bytes
17 static inline unsigned long task_io_get_inblock(const struct task_struct
*p
)
19 return p
->ioac
.read_bytes
>> 9;
22 static inline void task_io_account_write(size_t bytes
)
24 current
->ioac
.write_bytes
+= bytes
;
28 * We approximate number of blocks, because we account bytes only.
29 * A 'block' is 512 bytes
31 static inline unsigned long task_io_get_oublock(const struct task_struct
*p
)
33 return p
->ioac
.write_bytes
>> 9;
36 static inline void task_io_account_cancelled_write(size_t bytes
)
38 current
->ioac
.cancelled_write_bytes
+= bytes
;
41 static inline void task_io_accounting_init(struct task_struct
*tsk
)
43 memset(&tsk
->ioac
, 0, sizeof(tsk
->ioac
));
48 static inline void task_io_account_read(size_t bytes
)
52 static inline unsigned long task_io_get_inblock(const struct task_struct
*p
)
57 static inline void task_io_account_write(size_t bytes
)
61 static inline unsigned long task_io_get_oublock(const struct task_struct
*p
)
66 static inline void task_io_account_cancelled_write(size_t bytes
)
70 static inline void task_io_accounting_init(struct task_struct
*tsk
)
74 #endif /* CONFIG_TASK_IO_ACCOUNTING */
75 #endif /* __TASK_IO_ACCOUNTING_OPS_INCLUDED */
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