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Commit a360b335 authored by Jin Qian's avatar Jin Qian
Browse files

ANDROID: sched: add a counter to track fsync 



Change-Id: I6c138de5b2332eea70f57e098134d1d141247b3f
Signed-off-by: default avatarJin Qian <jinqian@google.com>
parent b77f6fa5

fs/sync.c

+1 −0
Original line number Diff line number Diff line
@@ -205,6 +205,7 @@ static int do_fsync(unsigned int fd, int datasync) 
	if (f.file) {

		ret = vfs_fsync(f.file, datasync);

		fdput(f);

		inc_syscfs(current);

	}

	return ret;

}

include/linux/sched.h

+8 −0
Original line number Diff line number Diff line
@@ -3088,6 +3088,11 @@ static inline void inc_syscw(struct task_struct *tsk) 
{

	tsk->ioac.syscw++;

}



static inline void inc_syscfs(struct task_struct *tsk)

{

	tsk->ioac.syscfs++;

}

#else

static inline void add_rchar(struct task_struct *tsk, ssize_t amt)

{
@@ -3104,6 +3109,9 @@ static inline void inc_syscr(struct task_struct *tsk) 
static inline void inc_syscw(struct task_struct *tsk)

{

}

static inline void inc_syscfs(struct task_struct *tsk)

{

}

#endif



#ifndef TASK_SIZE_OF

include/linux/task_io_accounting.h

+2 −0
Original line number Diff line number Diff line
@@ -18,6 +18,8 @@ struct task_io_accounting { 
	u64 syscr;

	/* # of write syscalls */

	u64 syscw;

	/* # of fsync syscalls */

	u64 syscfs;

#endif /* CONFIG_TASK_XACCT */



#ifdef CONFIG_TASK_IO_ACCOUNTING

include/linux/task_io_accounting_ops.h

+1 −0
Original line number Diff line number Diff line
@@ -96,6 +96,7 @@ static inline void task_chr_io_accounting_add(struct task_io_accounting *dst, 
	dst->wchar += src->wchar;

	dst->syscr += src->syscr;

	dst->syscw += src->syscw;

	dst->syscfs += src->syscfs;

}

#else

static inline void task_chr_io_accounting_add(struct task_io_accounting *dst,