25  * @content: kernel-space buffer, 4k aligned
26  * @len: size of @content cache (0 if caching disabled)
27  * @ofs: start of content within file (-1 if no cached content)
33  * read/dir requests. But content is cached only under some preconditions.
34  * Uncached content is signalled by a negative value of @ofs.
42 	void *content;  member
56  * hmcdrv_cache_get() - looks for file data/content in read cache
60  * in content cache (for the file/cmd specified in @ftp)
74 	if ((hmcdrv_cache_file.ofs < 0) || /* has content? */  in hmcdrv_cache_get()
78 	/* there seems to be cached content - calculate the maximum number  in hmcdrv_cache_get()
95 		       hmcdrv_cache_file.content + pos,  in hmcdrv_cache_get()
97 		pr_debug("using cached content of '%s', returning %zd/%zd bytes\n",  in hmcdrv_cache_get()
119 	/* only cache content if the read/dir cache really exists  in hmcdrv_cache_do()
131 		cftp.buf = hmcdrv_cache_file.content;  /* and update */  in hmcdrv_cache_do()
137 			pr_debug("caching %zd bytes content for '%s'\n",  in hmcdrv_cache_do()
146 			memcpy(ftp->buf, hmcdrv_cache_file.content, len);  in hmcdrv_cache_do()
150 		hmcdrv_cache_file.ofs = -1; /* invalidate content */  in hmcdrv_cache_do()
220 		hmcdrv_cache_file.content =  in hmcdrv_cache_startup()
224 		if (!hmcdrv_cache_file.content) {  in hmcdrv_cache_startup()
230 		pr_debug("content cache enabled, size is %zu bytes\n",  in hmcdrv_cache_startup()
243 	if (hmcdrv_cache_file.content) {  in hmcdrv_cache_shutdown()
244 		free_pages((unsigned long) hmcdrv_cache_file.content,  in hmcdrv_cache_shutdown()
246 		hmcdrv_cache_file.content = NULL;  in hmcdrv_cache_shutdown()