tree cf9485ea3195b9945dc0064906d28ccb8032aa0f
parent 4250c0668ea10a19f3d37b1733f54ce6c8a37234
author Maxim Patlasov <mpatlasov@parallels.com> 1351266510 +0400
committer Miklos Szeredi <mszeredi@suse.cz> 1359040885 +0100

fuse: categorize fuse_get_req()

The patch categorizes all fuse_get_req() invocations into two categories:
 - fuse_get_req_nopages(fc) - when caller doesn't care about req->pages
 - fuse_get_req(fc, n) - when caller need n page pointers (n > 0)

Adding fuse_get_req_nopages() helps to avoid numerous fuse_get_req(fc, 0)
scattered over code. Now it's clear from the first glance when a caller need
fuse_req with page pointers.

The patch doesn't make any logic changes. In multi-page case, it silly
allocates array of FUSE_MAX_PAGES_PER_REQ page pointers. This will be amended
by future patches.

Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>