1 #ifndef __FS_CEPH_BUFFER_H
2 #define __FS_CEPH_BUFFER_H
4 #include <linux/kref.h>
6 #include <linux/vmalloc.h>
7 #include <linux/types.h>
11 * a simple reference counted buffer.
13 * use kmalloc for small sizes (<= one page), vmalloc for larger
23 struct ceph_buffer *ceph_buffer_new(gfp_t gfp);
24 int ceph_buffer_alloc(struct ceph_buffer *b, int len, gfp_t gfp);
26 static inline struct ceph_buffer *ceph_buffer_get(struct ceph_buffer *b)
32 void ceph_buffer_release(struct kref *kref);
34 static inline void ceph_buffer_put(struct ceph_buffer *b)
37 kref_put(&b->kref, ceph_buffer_release);
40 static inline struct ceph_buffer *ceph_buffer_new_alloc(int len, gfp_t gfp)
42 struct ceph_buffer *b = ceph_buffer_new(gfp);
44 if (b && ceph_buffer_alloc(b, len, gfp) < 0) {