From 33165d472310262d8c79c7e4d1a17dc60cea7e35 Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Fri, 28 Sep 2018 15:38:34 +0200 Subject: libceph: introduce ceph_pagelist_alloc() struct ceph_pagelist cannot be embedded into anything else because it has its own refcount. Merge allocation and initialization together. Signed-off-by: Ilya Dryomov --- net/ceph/pagelist.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'net/ceph/pagelist.c') diff --git a/net/ceph/pagelist.c b/net/ceph/pagelist.c index 2ea0564771d2..65e34f78b05d 100644 --- a/net/ceph/pagelist.c +++ b/net/ceph/pagelist.c @@ -6,6 +6,26 @@ #include #include +struct ceph_pagelist *ceph_pagelist_alloc(gfp_t gfp_flags) +{ + struct ceph_pagelist *pl; + + pl = kmalloc(sizeof(*pl), gfp_flags); + if (!pl) + return NULL; + + INIT_LIST_HEAD(&pl->head); + pl->mapped_tail = NULL; + pl->length = 0; + pl->room = 0; + INIT_LIST_HEAD(&pl->free_list); + pl->num_pages_free = 0; + refcount_set(&pl->refcnt, 1); + + return pl; +} +EXPORT_SYMBOL(ceph_pagelist_alloc); + static void ceph_pagelist_unmap_tail(struct ceph_pagelist *pl) { if (pl->mapped_tail) { -- cgit