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Commit 9bcddfac authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

ANDROID: f2fs: add android fsync tracepoint 



Change-Id: Id7c23173f85a835a2294ee698597b7d60f1ee356
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@google.com>
parent 5a54c65c

fs/f2fs/file.c

+12 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ 
#include "gc.h"

#include "trace.h"

#include <trace/events/f2fs.h>

#include <trace/events/android_fs.h>



static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)

{
@@ -218,6 +219,15 @@ static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end, 


	trace_f2fs_sync_file_enter(inode);



	if (trace_android_fs_fsync_start_enabled()) {

		char *path, pathbuf[MAX_TRACE_PATHBUF_LEN];



		path = android_fstrace_get_pathname(pathbuf,

				MAX_TRACE_PATHBUF_LEN, inode);

		trace_android_fs_fsync_start(inode,

				current->pid, path, current->comm);

	}



	if (S_ISDIR(inode->i_mode))

		goto go_write;
@@ -323,6 +333,8 @@ static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end, 
out:

	trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);

	f2fs_trace_ios(NULL, 1);

	trace_android_fs_fsync_end(inode, start, end - start);



	return ret;

}

include/trace/events/android_fs.h

+9 −0
Original line number Diff line number Diff line
@@ -25,6 +25,15 @@ DEFINE_EVENT(android_fs_data_end_template, android_fs_datawrite_end, 
	TP_PROTO(struct inode *inode, loff_t offset, int bytes),

	     TP_ARGS(inode, offset, bytes));



DEFINE_EVENT(android_fs_fsync_start_template, android_fs_fsync_start,

	TP_PROTO(struct inode *inode,

		 pid_t pid, char *pathname, char *command),

	TP_ARGS(inode, pid, pathname, command));



DEFINE_EVENT(android_fs_data_end_template, android_fs_fsync_end,

	TP_PROTO(struct inode *inode, loff_t offset, int bytes),

	     TP_ARGS(inode, offset, bytes));



#endif /* _TRACE_ANDROID_FS_H */



/* This part must be outside protection */

include/trace/events/android_fs_template.h

+34 −0
Original line number Diff line number Diff line
@@ -61,4 +61,38 @@ DECLARE_EVENT_CLASS(android_fs_data_end_template, 
		  __entry->offset, __entry->bytes)

);



DECLARE_EVENT_CLASS(android_fs_fsync_start_template,

	TP_PROTO(struct inode *inode,

		 pid_t pid, char *pathname, char *command),

	TP_ARGS(inode, pid, pathname, command),

	TP_STRUCT__entry(

		__string(pathbuf, pathname);

		__field(loff_t,	i_size);

		__string(cmdline, command);

		__field(pid_t,	pid);

		__field(ino_t,	ino);

	),

	TP_fast_assign(

		{

			/*

			 * Replace the spaces in filenames and cmdlines

			 * because this screws up the tooling that parses

			 * the traces.

			 */

			__assign_str(pathbuf, pathname);

			(void)strreplace(__get_str(pathbuf), ' ', '_');

			__entry->i_size		= i_size_read(inode);

			__assign_str(cmdline, command);

			(void)strreplace(__get_str(cmdline), ' ', '_');

			__entry->pid		= pid;

			__entry->ino		= inode->i_ino;

		}

	),

	TP_printk("entry_name %s, cmdline %s,"

		  " pid %d, i_size %llu, ino %lu",

		  __get_str(pathbuf),

		  __get_str(cmdline), __entry->pid, __entry->i_size,

		  (unsigned long) __entry->ino)

);



#endif /* _TRACE_ANDROID_FS_TEMPLATE_H */