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 | } | ||
