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hc
2024-09-20 a36159eec6ca17402b0e146b86efaf76568dc353 
 kernel/include/uapi/linux/coda.h
....@@ -86,10 +86,6 @@
8686 
8787 #define inline
8888 
89
-struct timespec {
90
-        long       ts_sec;
91
-        long       ts_nsec;
92
-};
9389 #else  /* DJGPP but not KERNEL */
9490 #include <sys/time.h>
9591 typedef unsigned long long u_quad_t;
....@@ -108,13 +104,6 @@
108104 #endif /* __KERNEL__ */
109105 #else
110106 #define cdev_t dev_t
111
-#endif
112
-
113
-#ifdef __CYGWIN32__
114
-struct timespec {
115
-        time_t  tv_sec;         /* seconds */
116
-        long    tv_nsec;        /* nanoseconds */
117
-};
118107 #endif
119108 
120109 #ifndef __BIT_TYPES_DEFINED__
....@@ -211,6 +200,11 @@
211200  */
212201 enum coda_vtype	{ C_VNON, C_VREG, C_VDIR, C_VBLK, C_VCHR, C_VLNK, C_VSOCK, C_VFIFO, C_VBAD };
213202 
203
+struct coda_timespec {
204
+	int64_t		tv_sec;		/* seconds */
205
+	long		tv_nsec;	/* nanoseconds */
206
+};
207
+
214208 struct coda_vattr {
215209 	long     	va_type;	/* vnode type (for create) */
216210 	u_short		va_mode;	/* files access mode and type */
....@@ -220,9 +214,9 @@
220214 	long		va_fileid;	/* file id */
221215 	u_quad_t	va_size;	/* file size in bytes */
222216 	long		va_blocksize;	/* blocksize preferred for i/o */
223
-	struct timespec	va_atime;	/* time of last access */
224
-	struct timespec	va_mtime;	/* time of last modification */
225
-	struct timespec	va_ctime;	/* time file changed */
217
+	struct coda_timespec va_atime;	/* time of last access */
218
+	struct coda_timespec va_mtime;	/* time of last modification */
219
+	struct coda_timespec va_ctime;	/* time file changed */
226220 	u_long		va_gen;		/* generation number of file */
227221 	u_long		va_flags;	/* flags defined for file */
228222 	cdev_t	        va_rdev;	/* device special file represents */
....@@ -277,7 +271,8 @@
277271 #define CODA_STATFS	 34
278272 #define CODA_STORE	 35
279273 #define CODA_RELEASE	 36
280
-#define CODA_NCALLS 37
274
+#define CODA_ACCESS_INTENT 37
275
+#define CODA_NCALLS 38
281276 
282277 #define DOWNCALL(opcode) (opcode >= CODA_REPLACE && opcode <= CODA_PURGEFID)
283278 
....@@ -287,7 +282,12 @@
287282 
288283 #define CIOC_KERNEL_VERSION _IOWR('c', 10, size_t)
289284 
290
-#define CODA_KERNEL_VERSION 3 /* 128-bit file identifiers */
285
+//      CODA_KERNEL_VERSION 0 /* don't care about kernel version number */
286
+//      CODA_KERNEL_VERSION 1 /* The old venus 4.6 compatible interface */
287
+//      CODA_KERNEL_VERSION 2 /* venus_lookup gets an extra parameter */
288
+//      CODA_KERNEL_VERSION 3 /* 128-bit file identifiers */
289
+//      CODA_KERNEL_VERSION 4 /* 64-bit timespec */
290
+#define CODA_KERNEL_VERSION 5 /* access intent support */
291291 
292292 /*
293293  *        Venus <-> Coda  RPC arguments
....@@ -295,8 +295,8 @@
295295 struct coda_in_hdr {
296296     u_int32_t opcode;
297297     u_int32_t unique;	    /* Keep multiple outstanding msgs distinct */
298
-    pid_t pid;
299
-    pid_t pgid;
298
+    __kernel_pid_t pid;
299
+    __kernel_pid_t pgid;
300300     vuid_t uid;
301301 };
302302 
....@@ -642,6 +642,25 @@
642642     struct coda_statfs stat;
643643 };
644644 
645
+#define CODA_ACCESS_TYPE_READ		1
646
+#define CODA_ACCESS_TYPE_WRITE		2
647
+#define CODA_ACCESS_TYPE_MMAP		3
648
+#define CODA_ACCESS_TYPE_READ_FINISH	4
649
+#define CODA_ACCESS_TYPE_WRITE_FINISH	5
650
+
651
+/* coda_access_intent: NO_OUT */
652
+struct coda_access_intent_in {
653
+	struct coda_in_hdr ih;
654
+	struct CodaFid VFid;
655
+	int count;
656
+	int pos;
657
+	int type;
658
+};
659
+
660
+struct coda_access_intent_out {
661
+	struct coda_out_hdr out;
662
+};
663
+
645664 /* 
646665  * Occasionally, we don't cache the fid returned by CODA_LOOKUP. 
647666  * For instance, if the fid is inconsistent. 
....@@ -673,6 +692,7 @@
673692     struct coda_open_by_fd_in coda_open_by_fd;
674693     struct coda_open_by_path_in coda_open_by_path;
675694     struct coda_statfs_in coda_statfs;
695
+    struct coda_access_intent_in coda_access_intent;
676696 };
677697 
678698 union outputArgs {