66 lines
1.8 KiB
C
66 lines
1.8 KiB
C
#undef TRACE_SYSTEM
|
|
#define TRACE_SYSTEM android_fs
|
|
|
|
#if !defined(_TRACE_ANDROID_FS_H) || defined(TRACE_HEADER_MULTI_READ)
|
|
#define _TRACE_ANDROID_FS_H
|
|
|
|
#include <linux/tracepoint.h>
|
|
#include <trace/events/android_fs_template.h>
|
|
|
|
DEFINE_EVENT(android_fs_data_start_template, android_fs_dataread_start,
|
|
TP_PROTO(struct inode *inode, loff_t offset, int bytes,
|
|
pid_t pid, char *pathname, char *command),
|
|
TP_ARGS(inode, offset, bytes, pid, pathname, command));
|
|
|
|
DEFINE_EVENT(android_fs_data_end_template, android_fs_dataread_end,
|
|
TP_PROTO(struct inode *inode, loff_t offset, int bytes),
|
|
TP_ARGS(inode, offset, bytes));
|
|
|
|
DEFINE_EVENT(android_fs_data_start_template, android_fs_datawrite_start,
|
|
TP_PROTO(struct inode *inode, loff_t offset, int bytes,
|
|
pid_t pid, char *pathname, char *command),
|
|
TP_ARGS(inode, offset, bytes, pid, pathname, command));
|
|
|
|
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));
|
|
|
|
#endif /* _TRACE_ANDROID_FS_H */
|
|
|
|
/* This part must be outside protection */
|
|
#include <trace/define_trace.h>
|
|
|
|
#ifndef ANDROID_FSTRACE_GET_PATHNAME
|
|
#define ANDROID_FSTRACE_GET_PATHNAME
|
|
|
|
/* Sizes an on-stack array, so careful if sizing this up ! */
|
|
#define MAX_TRACE_PATHBUF_LEN 256
|
|
|
|
static inline char *
|
|
android_fstrace_get_pathname(char *buf, int buflen, struct inode *inode)
|
|
{
|
|
char *path;
|
|
struct dentry *d;
|
|
|
|
/*
|
|
* d_obtain_alias() will either iput() if it locates an existing
|
|
* dentry or transfer the reference to the new dentry created.
|
|
* So get an extra reference here.
|
|
*/
|
|
ihold(inode);
|
|
d = d_obtain_alias(inode);
|
|
if (likely(!IS_ERR(d))) {
|
|
path = dentry_path_raw(d, buf, buflen);
|
|
if (unlikely(IS_ERR(path))) {
|
|
strcpy(buf, "ERROR");
|
|
path = buf;
|
|
}
|
|
dput(d);
|
|
} else {
|
|
strcpy(buf, "ERROR");
|
|
path = buf;
|
|
}
|
|
return path;
|
|
}
|
|
#endif
|