X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=module%2Fzfs%2Flzjb.c;h=43d0df055d8e1eb013c0af3682aa2424af043da7;hb=389cf730cedd42dd1ef653e9358635c114e458d5;hp=ab3de51b7259a7ff230f3b2fae2c27c4c083c0b3;hpb=572e285762521df27fe5b026f409ba1a21abb7ac;p=zfs.git

diff --git a/module/zfs/lzjb.c b/module/zfs/lzjb.c
index ab3de51..43d0df0 100644
--- a/module/zfs/lzjb.c
+++ b/module/zfs/lzjb.c
@@ -36,7 +36,7 @@
  * source length if compression would overflow the destination buffer.
  */
 
-#include <sys/types.h>
+#include <sys/zfs_context.h>
 
 #define	MATCH_BITS	6
 #define	MATCH_MIN	3
@@ -50,16 +50,19 @@ lzjb_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
 {
 	uchar_t *src = s_start;
 	uchar_t *dst = d_start;
-	uchar_t *cpy, *copymap;
+	uchar_t *cpy, *copymap = NULL;
 	int copymask = 1 << (NBBY - 1);
 	int mlen, offset, hash;
 	uint16_t *hp;
-	uint16_t lempel[LEMPEL_SIZE] = { 0 };
+	uint16_t *lempel;
 
+	lempel = kmem_zalloc(LEMPEL_SIZE * sizeof (uint16_t), KM_PUSHPAGE);
 	while (src < (uchar_t *)s_start + s_len) {
 		if ((copymask <<= 1) == (1 << NBBY)) {
-			if (dst >= (uchar_t *)d_start + d_len - 1 - 2 * NBBY)
+			if (dst >= (uchar_t *)d_start + d_len - 1 - 2 * NBBY) {
+				kmem_free(lempel, LEMPEL_SIZE*sizeof(uint16_t));
 				return (s_len);
+			}
 			copymask = 1;
 			copymap = dst;
 			*dst++ = 0;
@@ -89,6 +92,8 @@ lzjb_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
 			*dst++ = *src++;
 		}
 	}
+
+	kmem_free(lempel, LEMPEL_SIZE * sizeof (uint16_t));
 	return (dst - (uchar_t *)d_start);
 }
 
@@ -99,7 +104,7 @@ lzjb_decompress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
 	uchar_t *src = s_start;
 	uchar_t *dst = d_start;
 	uchar_t *d_end = (uchar_t *)d_start + d_len;
-	uchar_t *cpy, copymap;
+	uchar_t *cpy, copymap = 0;
 	int copymask = 1 << (NBBY - 1);
 
 	while (dst < d_end) {