AcoSail/kernel_optimize_test
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libceph: nuke ceph_kvfree()

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Use kvfree() from linux/mm.h instead, which is identical.  Also fix the
ceph_buffer comment: we will allocate with kmalloc() up to 32k - the
value of PAGE_ALLOC_COSTLY_ORDER, but that really is just an
implementation detail so don't mention it at all.

Signed-off-by: Ilya Dryomov <idryomov@redhat.com>
This commit is contained in:
Ilya Dryomov 2014-10-23 16:32:57 +04:00
parent 9280be24dc
commit 4965fc38c4
5 changed files with 4 additions and 14 deletions
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3
include/linux/ceph/buffer.h
View File

@ -10,8 +10,7 @@
/*
* a simple reference counted buffer.
*
* use kmalloc for small sizes (<= one page), vmalloc for larger
* sizes.
* use kmalloc for smaller sizes, vmalloc for larger sizes.
*/
struct ceph_buffer {
struct kref kref;

1
include/linux/ceph/libceph.h
View File

@ -184,7 +184,6 @@ extern bool libceph_compatible(void *data);
extern const char *ceph_msg_type_name(int type);
extern int ceph_check_fsid(struct ceph_client *client, struct ceph_fsid *fsid);
extern void *ceph_kvmalloc(size_t size, gfp_t flags);
extern void ceph_kvfree(const void *ptr);
extern struct ceph_options *ceph_parse_options(char *options,
const char *dev_name, const char *dev_name_end,

4
net/ceph/buffer.c
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@ -6,7 +6,7 @@
#include <linux/ceph/buffer.h>
#include <linux/ceph/decode.h>
#include <linux/ceph/libceph.h> /* for ceph_kv{malloc,free} */
#include <linux/ceph/libceph.h> /* for ceph_kvmalloc */
struct ceph_buffer *ceph_buffer_new(size_t len, gfp_t gfp)
{
@ -35,7 +35,7 @@ void ceph_buffer_release(struct kref *kref)
struct ceph_buffer *b = container_of(kref, struct ceph_buffer, kref);
dout("buffer_release %p\n", b);
ceph_kvfree(b->vec.iov_base);
kvfree(b->vec.iov_base);
kfree(b);
}
EXPORT_SYMBOL(ceph_buffer_release);

8
net/ceph/ceph_common.c
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@ -184,14 +184,6 @@ void *ceph_kvmalloc(size_t size, gfp_t flags)
return __vmalloc(size, flags | __GFP_HIGHMEM, PAGE_KERNEL);
}
void ceph_kvfree(const void *ptr)
{
if (is_vmalloc_addr(ptr))
vfree(ptr);
else
kfree(ptr);
}
static int parse_fsid(const char *str, struct ceph_fsid *fsid)
{

2
net/ceph/messenger.c
View File

@ -3288,7 +3288,7 @@ static int ceph_con_in_msg_alloc(struct ceph_connection *con, int *skip)
static void ceph_msg_free(struct ceph_msg *m)
{
dout("%s %p\n", __func__, m);
ceph_kvfree(m->front.iov_base);
kvfree(m->front.iov_base);
kmem_cache_free(ceph_msg_cache, m);
}