24 Nov, 2014
1 commit
-
This prefixes all crypto module loading with "crypto-" so we never run
the risk of exposing module auto-loading to userspace via a crypto API,
as demonstrated by Mathias Krause:https://lkml.org/lkml/2013/3/4/70
Signed-off-by: Kees Cook
Signed-off-by: Herbert Xu
09 Aug, 2014
1 commit
-
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 599sSigned-off-by: Yinghai Lu
Cc: "H. Peter Anvin"
Cc: Ingo Molnar
Cc: Rashika Kheria
Cc: Josh Triplett
Cc: Kyungsik Lee
Cc: P J P
Cc: Al Viro
Cc: Tetsuo Handa
Cc: "Daniel M. Weeks"
Cc: Alexandre Courbot
Cc: Jan Beulich
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
29 Jun, 2011
1 commit
-
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
Acked-by: Herbert Xu
Signed-off-by: David S. Miller
23 Mar, 2011
1 commit
-
Instead of always creating a huge (268K) deflate_workspace with the
maximum compression parameters (windowBits=15, memLevel=8), allow the
caller to obtain a smaller workspace by specifying smaller parameter
values.For example, when capturing oops and panic reports to a medium with
limited capacity, such as NVRAM, compression may be the only way to
capture the whole report. In this case, a small workspace (24K works
fine) is a win, whether you allocate the workspace when you need it (i.e.,
during an oops or panic) or at boot time.I've verified that this patch works with all accepted values of windowBits
(positive and negative), memLevel, and compression level.Signed-off-by: Jim Keniston
Cc: Herbert Xu
Cc: David Miller
Cc: Chris Mason
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
27 Nov, 2010
1 commit
-
Signed-off-by: Joe Perches
Signed-off-by: Herbert Xu
02 Jun, 2009
1 commit
-
If crypto_{,de}compress_{update,final}() succeed, return the actual number of
bytes produced instead of zero, so their users don't have to calculate that
theirselves.Signed-off-by: Geert Uytterhoeven
Signed-off-by: Herbert Xu
04 Mar, 2009
1 commit
-
Signed-off-by: Geert Uytterhoeven
Cc: James Morris
Signed-off-by: Herbert Xu