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net+crypto: Use vmalloc for zlib inflate buffers.

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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 <[email protected]>
Acked-by: Herbert Xu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
David S. Miller 2011-06-29 05:48:41 -07:00
commit 7ab24bfdf9
4 changed files with 11 additions and 14 deletions
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6
drivers/net/bnx2x/bnx2x_main.c
View file

@ -49,6 +49,7 @@
#include <linux/zlib.h>
#include <linux/io.h>
#include <linux/stringify.h>
#include <linux/vmalloc.h>
#define BNX2X_MAIN
#include "bnx2x.h"
@ -4537,8 +4538,7 @@ static int bnx2x_gunzip_init(struct bnx2x *bp)
if (bp->strm == NULL)
goto gunzip_nomem2;
bp->strm->workspace = kmalloc(zlib_inflate_workspacesize(),
GFP_KERNEL);
bp->strm->workspace = vmalloc(zlib_inflate_workspacesize());
if (bp->strm->workspace == NULL)
goto gunzip_nomem3;
@ -4562,7 +4562,7 @@ gunzip_nomem1:
static void bnx2x_gunzip_end(struct bnx2x *bp)
{
if (bp->strm) {
kfree(bp->strm->workspace);
vfree(bp->strm->workspace);
kfree(bp->strm);
bp->strm = NULL;
}

5
drivers/net/ppp_deflate.c
View file

@ -305,7 +305,7 @@ static void z_decomp_free(void *arg)
if (state) {
zlib_inflateEnd(&state->strm);
kfree(state->strm.workspace);
vfree(state->strm.workspace);
kfree(state);
}
}
@ -345,8 +345,7 @@ static void *z_decomp_alloc(unsigned char *options, int opt_len)
state->w_size = w_size;
state->strm.next_out = NULL;
state->strm.workspace = kmalloc(zlib_inflate_workspacesize(),
GFP_KERNEL|__GFP_REPEAT);
state->strm.workspace = vmalloc(zlib_inflate_workspacesize());
if (state->strm.workspace == NULL)
goto out_free;