]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
kexec: add dmesg log symbols to /proc/vmcoreinfo lists
authorNeil Horman <nhorman@tuxdriver.com>
Thu, 2 Apr 2009 23:58:57 +0000 (16:58 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 3 Apr 2009 02:05:04 +0000 (19:05 -0700)
commit04d491ab2a53008a1aa98ac09561768c7f3adda3
treeab8fff6fb8674c8061b733ce64d6d6fba9d68ff3
parent23c36c1aec895fd52d7dd8cd3ce4bbce43c969fd
kexec: add dmesg log symbols to /proc/vmcoreinfo lists

It would be nice to be able to extract the dmesg log from a vmcore file
without needing to keep the debug symbols for the running kernel handy all
the time.  We have a facility to do this in /proc/vmcore.  This patch adds
the log_buf and log_end symbols to the vmcoreinfo area so that tools (like
makedumpfile) can easily extract the dmesg logs from a vmcore image.

[akpm@linux-foundation.org: several fixes and cleanups]
[akpm@linux-foundation.org: fix unused log_buf_kexec_setup()]
[akpm@linux-foundation.org: build fix]
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Cc: Simon Horman <horms@verge.net.au>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/kernel.h
kernel/kexec.c
kernel/printk.c