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fuse: convert cuse to use folios

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Convert cuse requests to use a folio instead of a page.

No functional changes.

Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Joanne Koong 2024-10-24 10:17:59 -07:00 committed by Miklos Szeredi
parent 29279e1d42
commit ee80369a8a
1 changed files with 17 additions and 15 deletions
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32
fs/fuse/cuse.c
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@ -303,8 +303,8 @@ struct cuse_init_args {
struct fuse_args_pages ap;
struct cuse_init_in in;
struct cuse_init_out out;
struct page *page;
struct fuse_page_desc desc;
struct folio *folio;
struct fuse_folio_desc desc;
};
/**
@ -326,7 +326,7 @@ static void cuse_process_init_reply(struct fuse_mount *fm,
struct fuse_args_pages *ap = &ia->ap;
struct cuse_conn *cc = fc_to_cc(fc), *pos;
struct cuse_init_out *arg = &ia->out;
struct page *page = ap->pages[0];
struct folio *folio = ap->folios[0];
struct cuse_devinfo devinfo = { };
struct device *dev;
struct cdev *cdev;
@ -343,7 +343,7 @@ static void cuse_process_init_reply(struct fuse_mount *fm,
/* parse init reply */
cc->unrestricted_ioctl = arg->flags & CUSE_UNRESTRICTED_IOCTL;
rc = cuse_parse_devinfo(page_address(page), ap->args.out_args[1].size,
rc = cuse_parse_devinfo(folio_address(folio), ap->args.out_args[1].size,
&devinfo);
if (rc)
goto err;
@ -411,7 +411,7 @@ static void cuse_process_init_reply(struct fuse_mount *fm,
kobject_uevent(&dev->kobj, KOBJ_ADD);
out:
kfree(ia);
__free_page(page);
folio_put(folio);
return;
err_cdev:
@ -429,7 +429,7 @@ static void cuse_process_init_reply(struct fuse_mount *fm,
static int cuse_send_init(struct cuse_conn *cc)
{
int rc;
struct page *page;
struct folio *folio;
struct fuse_mount *fm = &cc->fm;
struct cuse_init_args *ia;
struct fuse_args_pages *ap;
@ -437,13 +437,14 @@ static int cuse_send_init(struct cuse_conn *cc)
BUILD_BUG_ON(CUSE_INIT_INFO_MAX > PAGE_SIZE);
rc = -ENOMEM;
page = alloc_page(GFP_KERNEL | __GFP_ZERO);
if (!page)
folio = folio_alloc(GFP_KERNEL | __GFP_ZERO, 0);
if (!folio)
goto err;
ia = kzalloc(sizeof(*ia), GFP_KERNEL);
if (!ia)
goto err_free_page;
goto err_free_folio;
ap = &ia->ap;
ia->in.major = FUSE_KERNEL_VERSION;
@ -459,18 +460,19 @@ static int cuse_send_init(struct cuse_conn *cc)
ap->args.out_args[1].size = CUSE_INIT_INFO_MAX;
ap->args.out_argvar = true;
ap->args.out_pages = true;
ap->num_pages = 1;
ap->pages = &ia->page;
ap->descs = &ia->desc;
ia->page = page;
ap->uses_folios = true;
ap->num_folios = 1;
ap->folios = &ia->folio;
ap->folio_descs = &ia->desc;
ia->folio = folio;
ia->desc.length = ap->args.out_args[1].size;
ap->args.end = cuse_process_init_reply;
rc = fuse_simple_background(fm, &ap->args, GFP_KERNEL);
if (rc) {
kfree(ia);
err_free_page:
__free_page(page);
err_free_folio:
folio_put(folio);
}
err:
return rc;