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authorDavid S. Miller <davem@davemloft.net>2011-06-29 12:48:41 (GMT)
committerDavid S. Miller <davem@davemloft.net>2011-06-29 12:48:41 (GMT)
commit7ab24bfdf9a9a9f87ac8e5ad9a25f80b5b947be7 (patch)
tree897d12fb7498316d05ce2ed48722fc78b61fc4e1 /crypto
parented6e4ef836d425bc35e33bf20fcec95e68203afa (diff)
net+crypto: Use vmalloc for zlib inflate buffers.
They are 64K and result in order-4 allocations, even with SLUB. Therefore, just like we always have for the deflate buffers, use vmalloc. Reported-by: Martin Jackson <mjackson220.list@gmail.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/deflate.c7
-rw-r--r--crypto/zlib.c7
2 files changed, 6 insertions, 8 deletions
diff --git a/crypto/deflate.c b/crypto/deflate.c
index b5ccae2..b0165ec 100644
--- a/crypto/deflate.c
+++ b/crypto/deflate.c
@@ -32,7 +32,6 @@
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/net.h>
-#include <linux/slab.h>
#define DEFLATE_DEF_LEVEL Z_DEFAULT_COMPRESSION
#define DEFLATE_DEF_WINBITS 11
@@ -73,7 +72,7 @@ static int deflate_decomp_init(struct deflate_ctx *ctx)
int ret = 0;
struct z_stream_s *stream = &ctx->decomp_stream;
- stream->workspace = kzalloc(zlib_inflate_workspacesize(), GFP_KERNEL);
+ stream->workspace = vzalloc(zlib_inflate_workspacesize());
if (!stream->workspace) {
ret = -ENOMEM;
goto out;
@@ -86,7 +85,7 @@ static int deflate_decomp_init(struct deflate_ctx *ctx)
out:
return ret;
out_free:
- kfree(stream->workspace);
+ vfree(stream->workspace);
goto out;
}
@@ -99,7 +98,7 @@ static void deflate_comp_exit(struct deflate_ctx *ctx)
static void deflate_decomp_exit(struct deflate_ctx *ctx)
{
zlib_inflateEnd(&ctx->decomp_stream);
- kfree(ctx->decomp_stream.workspace);
+ vfree(ctx->decomp_stream.workspace);
}
static int deflate_init(struct crypto_tfm *tfm)
diff --git a/crypto/zlib.c b/crypto/zlib.c
index d11d761..06b62e5 100644
--- a/crypto/zlib.c
+++ b/crypto/zlib.c
@@ -29,7 +29,6 @@
#include <linux/interrupt.h>
#include <linux/mm.h>
#include <linux/net.h>
-#include <linux/slab.h>
#include <crypto/internal/compress.h>
@@ -60,7 +59,7 @@ static void zlib_decomp_exit(struct zlib_ctx *ctx)
if (stream->workspace) {
zlib_inflateEnd(stream);
- kfree(stream->workspace);
+ vfree(stream->workspace);
stream->workspace = NULL;
}
}
@@ -228,13 +227,13 @@ static int zlib_decompress_setup(struct crypto_pcomp *tfm, void *params,
? nla_get_u32(tb[ZLIB_DECOMP_WINDOWBITS])
: DEF_WBITS;
- stream->workspace = kzalloc(zlib_inflate_workspacesize(), GFP_KERNEL);
+ stream->workspace = vzalloc(zlib_inflate_workspacesize());
if (!stream->workspace)
return -ENOMEM;
ret = zlib_inflateInit2(stream, ctx->decomp_windowBits);
if (ret != Z_OK) {
- kfree(stream->workspace);
+ vfree(stream->workspace);
stream->workspace = NULL;
return -EINVAL;
}

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