Commit 3b1bdf4e authored by Shaohua Li's avatar Shaohua Li Committed by Linus Torvalds

[PATCH] CPU hotplug broken with 2GB VMSPLIT

In VMSPLIT mode, kernel PGD might have more entries than user space.
Acked-by: default avatarJens Axboe <jens.axboe@oracle.com>
Signed-off-by: default avatarShaohua Li <shaohua.li@intel.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent c642f9e0
...@@ -1118,7 +1118,7 @@ static int __cpuinit __smp_prepare_cpu(int cpu) ...@@ -1118,7 +1118,7 @@ static int __cpuinit __smp_prepare_cpu(int cpu)
/* init low mem mapping */ /* init low mem mapping */
clone_pgd_range(swapper_pg_dir, swapper_pg_dir + USER_PGD_PTRS, clone_pgd_range(swapper_pg_dir, swapper_pg_dir + USER_PGD_PTRS,
KERNEL_PGD_PTRS); min_t(unsigned long, KERNEL_PGD_PTRS, USER_PGD_PTRS));
flush_tlb_all(); flush_tlb_all();
schedule_work(&info.task); schedule_work(&info.task);
wait_for_completion(&done); wait_for_completion(&done);
......
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