kernel/cache/file_cache.cpp

100 	int32 pageOffset, addr_t buffer, size_t bufferSize, bool useBuffer,
376 	int32 pageOffset, addr_t buffer, size_t bufferSize, bool useBuffer,
379 	TRACE(("read_into_cache(offset = %lld, pageOffset = %ld, buffer = %#lx, "
380 		"bufferSize = %lu\n", offset, pageOffset, buffer, bufferSize));
434 			vm_memcpy_from_physical((void*)buffer,
436 				bytes, IS_USER_ADDRESS(buffer));
438 			buffer += bytes;
460 	int32 pageOffset, addr_t buffer, size_t bufferSize, bool useBuffer,
463 	TRACE(("read_from_file(offset = %lld, pageOffset = %ld, buffer = %#lx, "
464 		"bufferSize = %lu\n", offset, pageOffset, buffer, bufferSize));
470 	vec.base = buffer;
497 	int32 pageOffset, addr_t buffer, size_t bufferSize, bool useBuffer,
588 			// copy data from user buffer
589 			vm_memcpy_to_physical(base + pageOffset, (void*)buffer, bytes,
590 				IS_USER_ADDRESS(buffer));
592 			// clear buffer instead
600 		buffer += bytes;
670 	addr_t buffer, size_t bufferSize, bool useBuffer,
684 		vec.base = buffer;
702 	off_t offset, addr_t buffer, bool useBuffer, int32 &pageOffset,
707 	if (lastBuffer == buffer)
710 	size_t requestSize = buffer - lastBuffer;
718 		lastBuffer = buffer;
729 cache_io(void* _cacheRef, void* cookie, off_t offset, addr_t buffer,
737 	bool useBuffer = buffer != 0;
739 	TRACE(("cache_io(ref = %p, offset = %lld, buffer = %p, size = %lu, %s)\n",
740 		ref, offset, (void*)buffer, *_size, doWrite ? "write" : "read"));
753 	addr_t lastBuffer = buffer;
788 				buffer, useBuffer, pageOffset, bytesLeft, reservePages,
822 				bool userBuffer = IS_USER_ADDRESS(buffer);
825 						vm_memcpy_to_physical(pageAddress, (void*)buffer,
831 					vm_memcpy_from_physical((void*)buffer, pageAddress,
868 			lastBuffer = buffer + bytesInPage;
877 		buffer += bytesInPage;
883 		if (buffer - lastBuffer + lastPageOffset >= kMaxChunkSize) {
885 				buffer, useBuffer, pageOffset, bytesLeft, reservePages,
901 file_cache_control(const char* subsystem, uint32 function, void* buffer,
924 			if (buffer == NULL)
928 			if (!IS_USER_ADDRESS(buffer)
929 				|| user_strlcpy(name, (char*)buffer,
1298 file_cache_read(void* _cacheRef, void* cookie, off_t offset, void* buffer,
1303 	TRACE(("file_cache_read(ref = %p, offset = %lld, buffer = %p, size = %lu)\n",
1304 		ref, offset, buffer, *_size));
1320 		vec.base = (addr_t)buffer;
1328 	return cache_io(ref, cookie, offset, (addr_t)buffer, _size, false);
1334 	const void* buffer, size_t* _size)
1344 		if (buffer != NULL) {
1346 			vec.base = (addr_t)buffer;
1358 		(addr_t)const_cast<void*>(buffer), _size, true);
1360 	TRACE(("file_cache_write(ref = %p, offset = %lld, buffer = %p, size = %lu)"
1361 		" = %ld\n", ref, offset, buffer, *_size, status));