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path: root/fs/fuse/ioctl.c
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Diffstat (limited to 'fs/fuse/ioctl.c')
-rw-r--r--fs/fuse/ioctl.c35
1 files changed, 18 insertions, 17 deletions
diff --git a/fs/fuse/ioctl.c b/fs/fuse/ioctl.c
index 572ce8a82ceb..2d9abf48828f 100644
--- a/fs/fuse/ioctl.c
+++ b/fs/fuse/ioctl.c
@@ -10,6 +10,8 @@
#include <linux/fileattr.h>
#include <linux/fsverity.h>
+#define FUSE_VERITY_ENABLE_ARG_MAX_PAGES 256
+
static ssize_t fuse_send_ioctl(struct fuse_mount *fm, struct fuse_args *args,
struct fuse_ioctl_out *outarg)
{
@@ -140,7 +142,7 @@ static int fuse_setup_enable_verity(unsigned long arg, struct iovec *iov,
{
struct fsverity_enable_arg enable;
struct fsverity_enable_arg __user *uarg = (void __user *)arg;
- const __u32 max_buffer_len = FUSE_MAX_MAX_PAGES * PAGE_SIZE;
+ const __u32 max_buffer_len = FUSE_VERITY_ENABLE_ARG_MAX_PAGES * PAGE_SIZE;
if (copy_from_user(&enable, uarg, sizeof(enable)))
return -EFAULT;
@@ -249,12 +251,12 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
BUILD_BUG_ON(sizeof(struct fuse_ioctl_iovec) * FUSE_IOCTL_MAX_IOV > PAGE_SIZE);
err = -ENOMEM;
- ap.pages = fuse_pages_alloc(fm->fc->max_pages, GFP_KERNEL, &ap.descs);
+ ap.folios = fuse_folios_alloc(fm->fc->max_pages, GFP_KERNEL, &ap.descs);
iov_page = (struct iovec *) __get_free_page(GFP_KERNEL);
- if (!ap.pages || !iov_page)
+ if (!ap.folios || !iov_page)
goto out;
- fuse_page_descs_length_init(ap.descs, 0, fm->fc->max_pages);
+ fuse_folio_descs_length_init(ap.descs, 0, fm->fc->max_pages);
/*
* If restricted, initialize IO parameters as encoded in @cmd.
@@ -304,14 +306,13 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
err = -ENOMEM;
if (max_pages > fm->fc->max_pages)
goto out;
- while (ap.num_pages < max_pages) {
- ap.pages[ap.num_pages] = alloc_page(GFP_KERNEL | __GFP_HIGHMEM);
- if (!ap.pages[ap.num_pages])
+ while (ap.num_folios < max_pages) {
+ ap.folios[ap.num_folios] = folio_alloc(GFP_KERNEL | __GFP_HIGHMEM, 0);
+ if (!ap.folios[ap.num_folios])
goto out;
- ap.num_pages++;
+ ap.num_folios++;
}
-
/* okay, let's send it to the client */
ap.args.opcode = FUSE_IOCTL;
ap.args.nodeid = ff->nodeid;
@@ -325,8 +326,8 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
err = -EFAULT;
iov_iter_init(&ii, ITER_SOURCE, in_iov, in_iovs, in_size);
- for (i = 0; iov_iter_count(&ii) && !WARN_ON(i >= ap.num_pages); i++) {
- c = copy_page_from_iter(ap.pages[i], 0, PAGE_SIZE, &ii);
+ for (i = 0; iov_iter_count(&ii) && !WARN_ON(i >= ap.num_folios); i++) {
+ c = copy_folio_from_iter(ap.folios[i], 0, PAGE_SIZE, &ii);
if (c != PAGE_SIZE && iov_iter_count(&ii))
goto out;
}
@@ -364,7 +365,7 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
in_iovs + out_iovs > FUSE_IOCTL_MAX_IOV)
goto out;
- vaddr = kmap_local_page(ap.pages[0]);
+ vaddr = kmap_local_folio(ap.folios[0], 0);
err = fuse_copy_ioctl_iovec(fm->fc, iov_page, vaddr,
transferred, in_iovs + out_iovs,
(flags & FUSE_IOCTL_COMPAT) != 0);
@@ -392,17 +393,17 @@ long fuse_do_ioctl(struct file *file, unsigned int cmd, unsigned long arg,
err = -EFAULT;
iov_iter_init(&ii, ITER_DEST, out_iov, out_iovs, transferred);
- for (i = 0; iov_iter_count(&ii) && !WARN_ON(i >= ap.num_pages); i++) {
- c = copy_page_to_iter(ap.pages[i], 0, PAGE_SIZE, &ii);
+ for (i = 0; iov_iter_count(&ii) && !WARN_ON(i >= ap.num_folios); i++) {
+ c = copy_folio_to_iter(ap.folios[i], 0, PAGE_SIZE, &ii);
if (c != PAGE_SIZE && iov_iter_count(&ii))
goto out;
}
err = 0;
out:
free_page((unsigned long) iov_page);
- while (ap.num_pages)
- __free_page(ap.pages[--ap.num_pages]);
- kfree(ap.pages);
+ while (ap.num_folios)
+ folio_put(ap.folios[--ap.num_folios]);
+ kfree(ap.folios);
return err ? err : outarg.result;
}