diff options
author | H. Peter Anvin <hpa@zytor.com> | 2009-01-09 00:14:17 +0100 |
---|---|---|
committer | H. Peter Anvin <hpa@zytor.com> | 2009-01-09 00:14:17 +0100 |
commit | 889c92d21db40be0b7d22a59395060237895bb85 (patch) | |
tree | db76e1e002e450cccc1b7a8119ad629eccc24da8 /init/initramfs.c | |
parent | bzip2/lzma: fix decompress_inflate.c vs multi-block-with-embedded-filename (diff) | |
download | linux-889c92d21db40be0b7d22a59395060237895bb85.tar.xz linux-889c92d21db40be0b7d22a59395060237895bb85.zip |
bzip2/lzma: centralize format detection
Centralize the compression format detection to a common routine in the
lib directory, and use it for both initramfs and initrd.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'init/initramfs.c')
-rw-r--r-- | init/initramfs.c | 39 |
1 files changed, 7 insertions, 32 deletions
diff --git a/init/initramfs.c b/init/initramfs.c index a3ba91cdab89..2f42984e5582 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -416,13 +416,13 @@ static int __init flush_buffer(void *bufv, unsigned len) static unsigned my_inptr; /* index of next byte to be processed in inbuf */ -#include <linux/decompress/bunzip2.h> -#include <linux/decompress/unlzma.h> -#include <linux/decompress/inflate.h> +#include <linux/decompress/generic.h> static char * __init unpack_to_rootfs(char *buf, unsigned len, int check_only) { int written; + decompress_fn decompress; + dry_run = check_only; header_buf = kmalloc(110, GFP_KERNEL); symlink_buf = kmalloc(PATH_MAX + N_ALIGN(PATH_MAX) + 1, GFP_KERNEL); @@ -450,35 +450,10 @@ static char * __init unpack_to_rootfs(char *buf, unsigned len, int check_only) continue; } this_header = 0; -#ifdef CONFIG_RD_GZIP - if (!gunzip(buf, len, NULL, flush_buffer, NULL, - &my_inptr, error) && - message == NULL) - goto ok; -#endif - -#ifdef CONFIG_RD_BZIP2 - message = NULL; /* Zero out message, or else cpio will - think an error has already occured */ - if (!bunzip2(buf, len, NULL, flush_buffer, NULL, - &my_inptr, error) && - message == NULL) { - goto ok; - } -#endif - -#ifdef CONFIG_RD_LZMA - message = NULL; /* Zero out message, or else cpio will - think an error has already occured */ - if (!unlzma(buf, len, NULL, flush_buffer, NULL, - &my_inptr, error) && - message == NULL) { - goto ok; - } -#endif -#if defined CONFIG_RD_GZIP || defined CONFIG_RD_BZIP2 || defined CONFIG_RD_LZMA -ok: -#endif + decompress = decompress_method(buf, len, NULL); + if (decompress) + decompress(buf, len, NULL, flush_buffer, NULL, + &my_inptr, error); if (state != Reset) error("junk in compressed archive"); this_header = saved_offset + my_inptr; |