Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Sage Weil |
263 |
91.00% |
4 |
40.00% |
| Yehuda Sadeh Weinraub |
16 |
5.54% |
1 |
10.00% |
| Ilya Dryomov |
4 |
1.38% |
2 |
20.00% |
| Tejun Heo |
3 |
1.04% |
1 |
10.00% |
| Michal Hocko |
2 |
0.69% |
1 |
10.00% |
| Greg Kroah-Hartman |
1 |
0.35% |
1 |
10.00% |
| Total |
289 |
|
10 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/ceph/ceph_debug.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/ceph/buffer.h>
#include <linux/ceph/decode.h>
#include <linux/ceph/libceph.h> /* for kvmalloc */
struct ceph_buffer *ceph_buffer_new(size_t len, gfp_t gfp)
{
struct ceph_buffer *b;
b = kmalloc(sizeof(*b), gfp);
if (!b)
return NULL;
b->vec.iov_base = kvmalloc(len, gfp);
if (!b->vec.iov_base) {
kfree(b);
return NULL;
}
kref_init(&b->kref);
b->alloc_len = len;
b->vec.iov_len = len;
dout("buffer_new %p\n", b);
return b;
}
EXPORT_SYMBOL(ceph_buffer_new);
void ceph_buffer_release(struct kref *kref)
{
struct ceph_buffer *b = container_of(kref, struct ceph_buffer, kref);
dout("buffer_release %p\n", b);
kvfree(b->vec.iov_base);
kfree(b);
}
EXPORT_SYMBOL(ceph_buffer_release);
int ceph_decode_buffer(struct ceph_buffer **b, void **p, void *end)
{
size_t len;
ceph_decode_need(p, end, sizeof(u32), bad);
len = ceph_decode_32(p);
dout("decode_buffer len %d\n", (int)len);
ceph_decode_need(p, end, len, bad);
*b = ceph_buffer_new(len, GFP_NOFS);
if (!*b)
return -ENOMEM;
ceph_decode_copy(p, (*b)->vec.iov_base, len);
return 0;
bad:
return -EINVAL;
}