Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) #undef TRACE_SYSTEM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #define TRACE_SYSTEM android_fs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #if !defined(_TRACE_ANDROID_FS_H) || defined(TRACE_HEADER_MULTI_READ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #define _TRACE_ANDROID_FS_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <linux/tracepoint.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <trace/events/android_fs_template.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) DEFINE_EVENT(android_fs_data_start_template, android_fs_dataread_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	TP_PROTO(struct inode *inode, loff_t offset, int bytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 		 pid_t pid, char *pathname, char *command),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	TP_ARGS(inode, offset, bytes, pid, pathname, command));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) DEFINE_EVENT(android_fs_data_end_template, android_fs_dataread_end,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	TP_PROTO(struct inode *inode, loff_t offset, int bytes),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	TP_ARGS(inode, offset, bytes));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) DEFINE_EVENT(android_fs_data_start_template, android_fs_datawrite_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	TP_PROTO(struct inode *inode, loff_t offset, int bytes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		 pid_t pid, char *pathname, char *command),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	TP_ARGS(inode, offset, bytes, pid, pathname, command));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) DEFINE_EVENT(android_fs_data_end_template, android_fs_datawrite_end,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	TP_PROTO(struct inode *inode, loff_t offset, int bytes),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	     TP_ARGS(inode, offset, bytes));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #endif /* _TRACE_ANDROID_FS_H */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) /* This part must be outside protection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <trace/define_trace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #ifndef ANDROID_FSTRACE_GET_PATHNAME
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define ANDROID_FSTRACE_GET_PATHNAME
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) /* Sizes an on-stack array, so careful if sizing this up ! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define MAX_TRACE_PATHBUF_LEN	256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) static inline char *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) android_fstrace_get_pathname(char *buf, int buflen, struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	char *path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	struct dentry *d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	 * d_obtain_alias() will either iput() if it locates an existing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	 * dentry or transfer the reference to the new dentry created.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	 * So get an extra reference here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	ihold(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	d = d_obtain_alias(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	if (likely(!IS_ERR(d))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 		path = dentry_path_raw(d, buf, buflen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 		if (unlikely(IS_ERR(path))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 			strcpy(buf, "ERROR");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 			path = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 		dput(d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 		strcpy(buf, "ERROR");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 		path = buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 	return path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #endif