Revision 74ca317c26a3f8543203b61d262c0ab2e30c384e authored by Vivek Goyal on 29 August 2014, 22:18:46 UTC, committed by Linus Torvalds on 29 August 2014, 23:28:16 UTC
Currently new system call kexec_file_load() and all the associated code compiles if CONFIG_KEXEC=y. But new syscall also compiles purgatory code which currently uses gcc option -mcmodel=large. This option seems to be available only gcc 4.4 onwards. Hiding new functionality behind a new config option will not break existing users of old gcc. Those who wish to enable new functionality will require new gcc. Having said that, I am trying to figure out how can I move away from using -mcmodel=large but that can take a while. I think there are other advantages of introducing this new config option. As this option will be enabled only on x86_64, other arches don't have to compile generic kexec code which will never be used. This new code selects CRYPTO=y and CRYPTO_SHA256=y. And all other arches had to do this for CONFIG_KEXEC. Now with introduction of new config option, we can remove crypto dependency from other arches. Now CONFIG_KEXEC_FILE is available only on x86_64. So whereever I had CONFIG_X86_64 defined, I got rid of that. For CONFIG_KEXEC_FILE, instead of doing select CRYPTO=y, I changed it to "depends on CRYPTO=y". This should be safer as "select" is not recursive. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Cc: Eric Biederman <ebiederm@xmission.com> Cc: H. Peter Anvin <hpa@zytor.com> Tested-by: Shaun Ruffell <sruffell@digium.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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File | Mode | Size |
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Kconfig | -rw-r--r-- | 476 bytes |
Makefile | -rw-r--r-- | 343 bytes |
ast.c | -rw-r--r-- | 8.0 KB |
ast.h | -rw-r--r-- | 1.3 KB |
config.c | -rw-r--r-- | 26.7 KB |
config.h | -rw-r--r-- | 1.5 KB |
debug_fs.c | -rw-r--r-- | 18.1 KB |
dir.c | -rw-r--r-- | 7.4 KB |
dir.h | -rw-r--r-- | 1.0 KB |
dlm_internal.h | -rw-r--r-- | 20.0 KB |
lock.c | -rw-r--r-- | 155.9 KB |
lock.h | -rw-r--r-- | 2.9 KB |
lockspace.c | -rw-r--r-- | 20.3 KB |
lockspace.h | -rw-r--r-- | 1.0 KB |
lowcomms.c | -rw-r--r-- | 44.6 KB |
lowcomms.h | -rw-r--r-- | 1.1 KB |
lvb_table.h | -rw-r--r-- | 687 bytes |
main.c | -rw-r--r-- | 2.0 KB |
member.c | -rw-r--r-- | 16.2 KB |
member.h | -rw-r--r-- | 1.4 KB |
memory.c | -rw-r--r-- | 2.1 KB |
memory.h | -rw-r--r-- | 1.0 KB |
midcomms.c | -rw-r--r-- | 3.7 KB |
midcomms.h | -rw-r--r-- | 864 bytes |
netlink.c | -rw-r--r-- | 2.9 KB |
plock.c | -rw-r--r-- | 11.7 KB |
rcom.c | -rw-r--r-- | 15.9 KB |
rcom.h | -rw-r--r-- | 1.2 KB |
recover.c | -rw-r--r-- | 22.8 KB |
recover.h | -rw-r--r-- | 1.5 KB |
recoverd.c | -rw-r--r-- | 7.9 KB |
recoverd.h | -rw-r--r-- | 927 bytes |
requestqueue.c | -rw-r--r-- | 4.8 KB |
requestqueue.h | -rw-r--r-- | 882 bytes |
user.c | -rw-r--r-- | 24.2 KB |
user.h | -rw-r--r-- | 586 bytes |
util.c | -rw-r--r-- | 4.5 KB |
util.h | -rw-r--r-- | 805 bytes |
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