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ANDROID: f2fs: add android fsync tracepoint

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Change-Id: Id7c23173f85a835a2294ee698597b7d60f1ee356
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
This commit is contained in:
Jaegeuk Kim
2019-06-26 19:06:30 -07:00
parent 5a54c65c35
commit 9bcddfac1e
3 changed files with 55 additions and 0 deletions
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12
fs/f2fs/file.c
View File

@@ -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;
}

9
include/trace/events/android_fs.h
View File

@@ -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 */

34
include/trace/events/android_fs_template.h
View File

@@ -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 */