ad4b32c45d
This adds a counter to the taskstats extended accounting fields, which
tracks the number of times fsync is called, and then plumbs it through
to the uid_sys_stats driver.
Bug: 120442023
Change-Id: I6c138de5b2332eea70f57e098134d1d141247b3f
Signed-off-by: Jin Qian <jinqian@google.com>
[AmitP: Refactored changes to align with changes from upstream commit
9a07000400 ("sched/headers: Move CONFIG_TASK_XACCT bits from <linux/sched.h> to <linux/sched/xacct.h>")]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
[tkjos: Needed for storaged fsync accounting ("storaged --uid" and
"storaged --task").]
[astrachan: This is modifying a userspace interface and should probably
be reworked]
Signed-off-by: Alistair Strachan <astrachan@google.com>
59 lines
995 B
C
59 lines
995 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_SCHED_XACCT_H
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#define _LINUX_SCHED_XACCT_H
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/*
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* Extended task accounting methods:
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*/
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#include <linux/sched.h>
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#ifdef CONFIG_TASK_XACCT
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static inline void add_rchar(struct task_struct *tsk, ssize_t amt)
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{
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tsk->ioac.rchar += amt;
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}
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static inline void add_wchar(struct task_struct *tsk, ssize_t amt)
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{
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tsk->ioac.wchar += amt;
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}
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static inline void inc_syscr(struct task_struct *tsk)
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{
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tsk->ioac.syscr++;
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}
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static inline void inc_syscw(struct task_struct *tsk)
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{
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tsk->ioac.syscw++;
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}
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static inline void inc_syscfs(struct task_struct *tsk)
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{
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tsk->ioac.syscfs++;
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}
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#else
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static inline void add_rchar(struct task_struct *tsk, ssize_t amt)
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{
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}
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static inline void add_wchar(struct task_struct *tsk, ssize_t amt)
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{
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}
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static inline void inc_syscr(struct task_struct *tsk)
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{
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}
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static inline void inc_syscw(struct task_struct *tsk)
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{
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}
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static inline void inc_syscfs(struct task_struct *tsk)
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{
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}
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#endif
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#endif /* _LINUX_SCHED_XACCT_H */
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