From 4f0dcb10cf1454a1c38aeaa04cb2757535e4905e Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Tue, 30 Apr 2013 00:44:32 -0500 Subject: libceph: create source file "net/ceph/snapshot.c" This creates a new source file "net/ceph/snapshot.c" to contain utility routines related to ceph snapshot contexts. The main motivation was to define ceph_create_snap_context() as a common way to create these structures, but I've moved the definitions of ceph_get_snap_context() and ceph_put_snap_context() there too. (The benefit of inlining those is very small, and I'd rather keep this collection of functions together.) Signed-off-by: Alex Elder Reviewed-by: Josh Durgin --- include/linux/ceph/libceph.h | 30 +++++------------------------- 1 file changed, 5 insertions(+), 25 deletions(-) (limited to 'include/linux/ceph') diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h index 5493d7b86423..2e3024881a5e 100644 --- a/include/linux/ceph/libceph.h +++ b/include/linux/ceph/libceph.h @@ -157,31 +157,11 @@ struct ceph_snap_context { u64 snaps[]; }; -static inline struct ceph_snap_context * -ceph_get_snap_context(struct ceph_snap_context *sc) -{ - /* - printk("get_snap_context %p %d -> %d\n", sc, atomic_read(&sc->nref), - atomic_read(&sc->nref)+1); - */ - if (sc) - atomic_inc(&sc->nref); - return sc; -} - -static inline void ceph_put_snap_context(struct ceph_snap_context *sc) -{ - if (!sc) - return; - /* - printk("put_snap_context %p %d -> %d\n", sc, atomic_read(&sc->nref), - atomic_read(&sc->nref)-1); - */ - if (atomic_dec_and_test(&sc->nref)) { - /*printk(" deleting snap_context %p\n", sc);*/ - kfree(sc); - } -} +extern struct ceph_snap_context *ceph_create_snap_context(u32 snap_count, + gfp_t gfp_flags); +extern struct ceph_snap_context *ceph_get_snap_context( + struct ceph_snap_context *sc); +extern void ceph_put_snap_context(struct ceph_snap_context *sc); /* * calculate the number of pages a given length and offset map onto, -- cgit v1.2.3