GeezerVison is showing codebrowser.dev — buffer.h source code [linux/include/linux/ceph/buffer.h] - Codebrowser

1	/ SPDX-License-Identifier: GPL-2.0 /
2	#ifndef __FS_CEPH_BUFFER_H
3	#define __FS_CEPH_BUFFER_H
4
5	#include <linux/kref.h>
6	#include <linux/mm.h>
7	#include <linux/vmalloc.h>
8	#include <linux/types.h>
9	#include <linux/uio.h>
10
11	/*
12	* a simple reference counted buffer.
13	*
14	* use kmalloc for smaller sizes, vmalloc for larger sizes.
15	*/
16	struct ceph_buffer {
17	struct kref kref;
18	struct kvec vec;
19	size_t alloc_len;
20	};
21
22	extern struct ceph_buffer *ceph_buffer_new(size_t len, gfp_t gfp);
23	extern void ceph_buffer_release(struct kref *kref);
24
25	static inline struct ceph_buffer ceph_buffer_get(struct* ceph_buffer *b)
26	{
27	kref_get(kref: &b->kref);
28	return b;
29	}
30
31	static inline void ceph_buffer_put(struct ceph_buffer *b)
32	{
33	if (b)
34	kref_put(kref: &b->kref, release: ceph_buffer_release);
35	}
36
37	extern int ceph_decode_buffer(struct ceph_buffer *b, void* *p, void* *end);
38
39	#endif
40

buffer.h