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s390/decompressor: correct BOOT_HEAP_SIZE condition

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Currently BOOT_HEAP_SIZE is always defined as 0x400000 due to
bogus condition. Use CONFIG_KERNEL_BZIP2 instead of
CONFIG_HAVE_KERNEL_BZIP2 to correct that.

BOOT_HEAP_SIZE of 0x10000 is still good enough for every decompressor
algorithm but bzip2. Actual decompressor memory usage with allyesconfig
is the following:
gzip  0xbc28
bzip2 0x379518
xz    0x7410
lzma  0x3e6c
lzo   0
lz4   0

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Vasily Gorbik 2021-06-16 00:36:41 +02:00
parent 87929cae88
commit 54f4521452
1 changed files with 1 additions and 1 deletions
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2
arch/s390/boot/compressed/decompressor.c
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@ -28,7 +28,7 @@ extern char _end[];
extern unsigned char _compressed_start[];
extern unsigned char _compressed_end[];
#ifdef CONFIG_HAVE_KERNEL_BZIP2
#ifdef CONFIG_KERNEL_BZIP2
#define BOOT_HEAP_SIZE 0x400000
#else
#define BOOT_HEAP_SIZE 0x10000