Searched refs:prealloc_buf (Results 1 - 7 of 7) sorted by relevance

/linux-master/drivers/comedi/
H A Dcomedi_buf.c59 if (async->prealloc_buf) {
61 vunmap(async->prealloc_buf);
62 async->prealloc_buf = NULL;
170 async->prealloc_buf = buf->virt_addr;
181 /* vmap the pages to prealloc_buf */
182 async->prealloc_buf = vmap(pages, n_pages, VM_MAP,
267 if (async->prealloc_buf && async->prealloc_bufsz == new_size)
279 if (!async->prealloc_buf) {
387 async->prealloc_buf + async->munge_ptr,
571 memcpy(async->prealloc_buf
[all...]
H A Dcomedi_fops.c2549 m = copy_from_user(async->prealloc_buf + wp, buf, n1);
2553 m = copy_from_user(async->prealloc_buf, buf + n1, n2);
2683 m = copy_to_user(buf, async->prealloc_buf + rp, n1);
2687 m = copy_to_user(buf + n1, async->prealloc_buf, n2);
/linux-master/fs/kernfs/
H A Dfile.c228 buf = of->prealloc_buf;
269 if (buf == of->prealloc_buf)
307 buf = of->prealloc_buf;
345 if (buf == of->prealloc_buf)
673 of->prealloc_buf = kmalloc(len + 1, GFP_KERNEL);
675 if (!of->prealloc_buf)
720 kfree(of->prealloc_buf);
767 kfree(of->prealloc_buf);
/linux-master/include/linux/comedi/
H A Dcomedidev.h238 * kernel's contiguous virtual address space pointed to by the 'prealloc_buf'
245 * address space pointed by 'prealloc_buf' is freed when the COMEDI device is
258 * @prealloc_buf: Kernel virtual address of allocated acquisition buffer.
347 void *prealloc_buf; member in struct:comedi_async
/linux-master/include/linux/
H A Dkernfs.h263 char *prealloc_buf; member in struct:kernfs_open_file
/linux-master/fs/sysfs/
H A Dfile.c109 * If buf != of->prealloc_buf, we don't know how
112 if (WARN_ON_ONCE(buf != of->prealloc_buf))
/linux-master/drivers/comedi/drivers/
H A Dni_pcidio.c750 memset(s->async->prealloc_buf, 0xaa, s->async->prealloc_bufsz);

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