redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

zcache: remove the second argument of k[un]map_atomic()

Browse source 
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Cong Wang <amwang@redhat.com>
This commit is contained in:
Cong Wang 2011-11-25 23:50:19 +08:00 committed by Cong Wang
parent f0c5b592a5
commit 97d5dd121c
1 changed files with 8 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
drivers/staging/zcache/zcache-main.c
View file

@ -421,13 +421,13 @@ static int zbud_decompress(struct page *page, struct zbud_hdr *zh)
}
ASSERT_SENTINEL(zh, ZBH);
BUG_ON(zh->size == 0 || zh->size > zbud_max_buddy_size());
to_va = kmap_atomic(page, KM_USER0);
to_va = kmap_atomic(page);
size = zh->size;
from_va = zbud_data(zh, size);
ret = lzo1x_decompress_safe(from_va, size, to_va, &out_len);
BUG_ON(ret != LZO_E_OK);
BUG_ON(out_len != PAGE_SIZE);
kunmap_atomic(to_va, KM_USER0);
kunmap_atomic(to_va);
out:
spin_unlock(&zbpg->lock);
return ret;
@ -676,13 +676,13 @@ static struct zv_hdr *zv_create(struct xv_pool *xvpool, uint32_t pool_id,
goto out;
atomic_inc(&zv_curr_dist_counts[chunks]);
atomic_inc(&zv_cumul_dist_counts[chunks]);
zv = kmap_atomic(page, KM_USER0) + offset;
zv = kmap_atomic(page) + offset;
zv->index = index;
zv->oid = *oid;
zv->pool_id = pool_id;
SET_SENTINEL(zv, ZVH);
memcpy((char *)zv + sizeof(struct zv_hdr), cdata, clen);
kunmap_atomic(zv, KM_USER0);
kunmap_atomic(zv);
out:
return zv;
}
@ -718,10 +718,10 @@ static void zv_decompress(struct page *page, struct zv_hdr *zv)
ASSERT_SENTINEL(zv, ZVH);
size = xv_get_object_size(zv) - sizeof(*zv);
BUG_ON(size == 0);
to_va = kmap_atomic(page, KM_USER0);
to_va = kmap_atomic(page);
ret = lzo1x_decompress_safe((char *)zv + sizeof(*zv),
size, to_va, &clen);
kunmap_atomic(to_va, KM_USER0);
kunmap_atomic(to_va);
BUG_ON(ret != LZO_E_OK);
BUG_ON(clen != PAGE_SIZE);
}
@ -1300,12 +1300,12 @@ static int zcache_compress(struct page *from, void **out_va, size_t *out_len)
BUG_ON(!irqs_disabled());
if (unlikely(dmem == NULL || wmem == NULL))
goto out; /* no buffer, so can't compress */
from_va = kmap_atomic(from, KM_USER0);
from_va = kmap_atomic(from);
mb();
ret = lzo1x_1_compress(from_va, PAGE_SIZE, dmem, out_len, wmem);
BUG_ON(ret != LZO_E_OK);
*out_va = dmem;
kunmap_atomic(from_va, KM_USER0);
kunmap_atomic(from_va);
ret = 1;
out:
return ret;