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authorMaxim Patlasov <mpatlasov@parallels.com>2012-10-26 19:49:24 +0400
committerMiklos Szeredi <mszeredi@suse.cz>2013-01-24 16:21:27 +0100
commitb2430d7567a376b3685627ca7e9d712f6f27d49b (patch)
tree2c59795b27e57f6a0a6c15d0f8aea3aac32f8317 /fs/fuse/fuse_i.h
parent54b966702dafe396b6f4e609f222b8e0fdb4d7a4 (diff)
downloadlinux-b2430d7567a376b3685627ca7e9d712f6f27d49b.tar.bz2
fuse: add per-page descriptor <offset, length> to fuse_req
The ability to save page pointers along with lengths and offsets in fuse_req will be useful to cover several iovec-s with a single fuse_req. Per-request page_offset is removed because anybody who need it can use req->page_descs[0].offset instead. Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'fs/fuse/fuse_i.h')
-rw-r--r--fs/fuse/fuse_i.h15
1 files changed, 12 insertions, 3 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 5b21e6ab9e75..70cef60afe0e 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -203,6 +203,12 @@ struct fuse_out {
struct fuse_arg args[3];
};
+/** FUSE page descriptor */
+struct fuse_page_desc {
+ unsigned int length;
+ unsigned int offset;
+};
+
/** The request state */
enum fuse_req_state {
FUSE_REQ_INIT = 0,
@@ -296,18 +302,21 @@ struct fuse_req {
/** page vector */
struct page **pages;
+ /** page-descriptor vector */
+ struct fuse_page_desc *page_descs;
+
/** size of the 'pages' array */
unsigned max_pages;
/** inline page vector */
struct page *inline_pages[FUSE_REQ_INLINE_PAGES];
+ /** inline page-descriptor vector */
+ struct fuse_page_desc inline_page_descs[FUSE_REQ_INLINE_PAGES];
+
/** number of pages in vector */
unsigned num_pages;
- /** offset of data on first page */
- unsigned page_offset;
-
/** File used in the request (or NULL) */
struct fuse_file *ff;