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authorAmerigo Wang <amwang@redhat.com>2009-12-15 16:47:46 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 07:20:13 -0800
commit06a7f711246b081afc21fff859f1003f1f2a0fbc (patch)
treeaece49693ad751923ce71387201d3c3e6214e335 /fs/fscache
parent1f2c19f8c959c1d0ccd3e33b1f480593b66d95dd (diff)
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op-kernel-dev-06a7f711246b081afc21fff859f1003f1f2a0fbc.tar.gz
kexec: premit reduction of the reserved memory size
Implement shrinking the reserved memory for crash kernel, if it is more than enough. For example, if you have already reserved 128M, now you just want 100M, you can do: # echo $((100*1024*1024)) > /sys/kernel/kexec_crash_size Note, you can only do this before loading the crash kernel. Signed-off-by: WANG Cong <amwang@redhat.com> Cc: Neil Horman <nhorman@redhat.com> Acked-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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