Commit 4c4f03f7 authored by Miklos Szeredi's avatar Miklos Szeredi
Browse files

fuse: move page alloc 



fuse_req_pages_alloc() is moved to file.c, since its internal use by the
device code will eventually be removed.

Rename to fuse_pages_alloc() to signify that it's not only usable for
fuse_req page array.

Signed-off-by: default avatarMiklos Szeredi <mszeredi@redhat.com>
parent 4c29afec

fs/fuse/dev.c

+2 −15
Original line number Diff line number Diff line
@@ -54,18 +54,6 @@ static void fuse_request_init(struct fuse_req *req, struct page **pages, 
	__set_bit(FR_PENDING, &req->flags);

}



static struct page **fuse_req_pages_alloc(unsigned int npages, gfp_t flags,

					  struct fuse_page_desc **desc)

{

	struct page **pages;



	pages = kzalloc(npages * (sizeof(struct page *) +

				  sizeof(struct fuse_page_desc)), flags);

	*desc = (void *) pages + npages * sizeof(struct page *);



	return pages;

}



static struct fuse_req *__fuse_request_alloc(unsigned npages, gfp_t flags)

{

	struct fuse_req *req = kmem_cache_zalloc(fuse_req_cachep, flags);
@@ -75,8 +63,7 @@ static struct fuse_req *__fuse_request_alloc(unsigned npages, gfp_t flags) 


		WARN_ON(npages > FUSE_MAX_MAX_PAGES);

		if (npages > FUSE_REQ_INLINE_PAGES) {

			pages = fuse_req_pages_alloc(npages, flags,

						     &page_descs);

			pages = fuse_pages_alloc(npages, flags, &page_descs);

			if (!pages) {

				kmem_cache_free(fuse_req_cachep, req);

				return NULL;
@@ -120,7 +107,7 @@ bool fuse_req_realloc_pages(struct fuse_conn *fc, struct fuse_req *req, 
				    fc->max_pages);

	WARN_ON(npages <= req->max_pages);



	pages = fuse_req_pages_alloc(npages, flags, &page_descs);

	pages = fuse_pages_alloc(npages, flags, &page_descs);

	if (!pages)

		return false;

fs/fuse/file.c

+12 −0
Original line number Diff line number Diff line
@@ -19,6 +19,18 @@ 
#include <linux/falloc.h>

#include <linux/uio.h>



struct page **fuse_pages_alloc(unsigned int npages, gfp_t flags,

			       struct fuse_page_desc **desc)

{

	struct page **pages;



	pages = kzalloc(npages * (sizeof(struct page *) +

				  sizeof(struct fuse_page_desc)), flags);

	*desc = (void *) (pages + npages);



	return pages;

}



static int fuse_send_open(struct fuse_conn *fc, u64 nodeid, struct file *file,

			  int opcode, struct fuse_open_out *outargp)

{

fs/fuse/fuse_i.h

+2 −0
Original line number Diff line number Diff line
@@ -909,6 +909,8 @@ struct fuse_req *fuse_request_alloc(unsigned npages); 


struct fuse_req *fuse_request_alloc_nofs(unsigned npages);



struct page **fuse_pages_alloc(unsigned int npages, gfp_t flags,

			       struct fuse_page_desc **desc);

bool fuse_req_realloc_pages(struct fuse_conn *fc, struct fuse_req *req,

			    gfp_t flags);

CRA Git | Maintained and supported by SUSTech CRA and CCSE