diff options
Diffstat (limited to 'fs/ceph/buffer.c')
-rw-r--r-- | fs/ceph/buffer.c | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/fs/ceph/buffer.c b/fs/ceph/buffer.c deleted file mode 100644 index cd39f17021de..000000000000 --- a/fs/ceph/buffer.c +++ /dev/null | |||
@@ -1,65 +0,0 @@ | |||
1 | |||
2 | #include "ceph_debug.h" | ||
3 | |||
4 | #include <linux/slab.h> | ||
5 | |||
6 | #include "buffer.h" | ||
7 | #include "decode.h" | ||
8 | |||
9 | struct ceph_buffer *ceph_buffer_new(size_t len, gfp_t gfp) | ||
10 | { | ||
11 | struct ceph_buffer *b; | ||
12 | |||
13 | b = kmalloc(sizeof(*b), gfp); | ||
14 | if (!b) | ||
15 | return NULL; | ||
16 | |||
17 | b->vec.iov_base = kmalloc(len, gfp | __GFP_NOWARN); | ||
18 | if (b->vec.iov_base) { | ||
19 | b->is_vmalloc = false; | ||
20 | } else { | ||
21 | b->vec.iov_base = __vmalloc(len, gfp, PAGE_KERNEL); | ||
22 | if (!b->vec.iov_base) { | ||
23 | kfree(b); | ||
24 | return NULL; | ||
25 | } | ||
26 | b->is_vmalloc = true; | ||
27 | } | ||
28 | |||
29 | kref_init(&b->kref); | ||
30 | b->alloc_len = len; | ||
31 | b->vec.iov_len = len; | ||
32 | dout("buffer_new %p\n", b); | ||
33 | return b; | ||
34 | } | ||
35 | |||
36 | void ceph_buffer_release(struct kref *kref) | ||
37 | { | ||
38 | struct ceph_buffer *b = container_of(kref, struct ceph_buffer, kref); | ||
39 | |||
40 | dout("buffer_release %p\n", b); | ||
41 | if (b->vec.iov_base) { | ||
42 | if (b->is_vmalloc) | ||
43 | vfree(b->vec.iov_base); | ||
44 | else | ||
45 | kfree(b->vec.iov_base); | ||
46 | } | ||
47 | kfree(b); | ||
48 | } | ||
49 | |||
50 | int ceph_decode_buffer(struct ceph_buffer **b, void **p, void *end) | ||
51 | { | ||
52 | size_t len; | ||
53 | |||
54 | ceph_decode_need(p, end, sizeof(u32), bad); | ||
55 | len = ceph_decode_32(p); | ||
56 | dout("decode_buffer len %d\n", (int)len); | ||
57 | ceph_decode_need(p, end, len, bad); | ||
58 | *b = ceph_buffer_new(len, GFP_NOFS); | ||
59 | if (!*b) | ||
60 | return -ENOMEM; | ||
61 | ceph_decode_copy(p, (*b)->vec.iov_base, len); | ||
62 | return 0; | ||
63 | bad: | ||
64 | return -EINVAL; | ||
65 | } | ||