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authorYinghai Lu <yinghai@kernel.org>2011-05-24 17:13:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-25 08:39:48 -0700
commit95dde501907b06e7203c74f8435acfdab9eb2659 (patch)
tree1bbaca98ac1251f0489d283f5426a839158e9182 /init
parentd9be9b90d6dc5e712ca5d6109691a8de753ce7f1 (diff)
memblock: add error return when CONFIG_HAVE_MEMBLOCK is not set
On larger systems, information in the kernel log is lost because there is so much early text printed, that it overflows the static log buffer before the log_buf_len kernel parameter can be processed, and a bigger log buffer allocated. Distros are relunctant to increase memory usage by increasing the size of the static log buffer, so minimize the problem by allocating the new log buffer as early as possible. This patch: Add an error return if CONFIG_HAVE_MEMBLOCK is not set instead of having to add #ifdef CONFIG_HAVE_MEMBLOCK around blocks of code calling that function. Signed-off-by: Mike Travis <travis@sgi.com> Cc: Yinghai Lu <yhlu.kernel@gmail.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Jack Steiner <steiner@sgi.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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