linux/fs/isofs
Yinghai Lu d97b07c54f initramfs: support initramfs that is bigger than 2GiB
Now with 64bit bzImage and kexec tools, we support ramdisk that size is
bigger than 2g, as we could put it above 4G.

Found compressed initramfs image could not be decompressed properly.  It
turns out that image length is int during decompress detection, and it
will become < 0 when length is more than 2G.  Furthermore, during
decompressing len as int is used for inbuf count, that has problem too.

Change len to long, that should be ok as on 32 bit platform long is
32bits.

Tested with following compressed initramfs image as root with kexec.
	gzip, bzip2, xz, lzma, lzop, lz4.
run time for populate_rootfs():
   size        name       Nehalem-EX  Westmere-EX  Ivybridge-EX
 9034400256 root_img     :   26s           24s          30s
 3561095057 root_img.lz4 :   28s           27s          27s
 3459554629 root_img.lzo :   29s           29s          28s
 3219399480 root_img.gz  :   64s           62s          49s
 2251594592 root_img.xz  :  262s          260s         183s
 2226366598 root_img.lzma:  386s          376s         277s
 2901482513 root_img.bz2 :  635s          599s

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Rashika Kheria <rashika.kheria@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Kyungsik Lee <kyungsik.lee@lge.com>
Cc: P J P <ppandit@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: "Daniel M. Weeks" <dan@danweeks.net>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: Jan Beulich <JBeulich@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08 15:57:26 -07:00
..
Kconfig fs/Kconfig: move iso9660, udf out 2009-01-22 13:15:55 +03:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
compress.c initramfs: support initramfs that is bigger than 2GiB 2014-08-08 15:57:26 -07:00
dir.c [readdir] convert isofs 2013-06-29 12:56:47 +04:00
export.c fs: encode_fh: return FILEID_INVALID if invalid fid_type 2013-02-26 02:46:10 -05:00
inode.c Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs 2014-04-07 17:59:17 -07:00
isofs.h userns: Convert isofs to use kuid/kgid where appropriate 2012-09-21 03:13:12 -07:00
joliet.c NLS: update handling of Unicode 2009-06-15 21:44:43 -07:00
namei.c Don't pass inode to ->d_hash() and ->d_compare() 2013-06-29 12:57:36 +04:00
rock.c userns: Convert isofs to use kuid/kgid where appropriate 2012-09-21 03:13:12 -07:00
rock.h [PATCH] rock: rename union members 2005-06-21 19:07:38 -07:00
util.c [PATCH] isofs includes sanitized 2005-04-25 18:32:12 -07:00
zisofs.h [PATCH] mark address_space_operations const 2006-06-28 14:59:04 -07:00