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Originally, walk_memory_resource() was introduced to traverse all memory of "System RAM" for detecting memory hotplug/unplug range. For doing so, flags of IORESOUCE_MEM|IORESOURCE_BUSY was used and this was enough for memory hotplug. But for using other purpose, /proc/kcore, this may includes some firmware area marked as IORESOURCE_BUSY | IORESOUCE_MEM. This patch makes the check strict to find out busy "System RAM". Note: PPC64 keeps their own walk_memory_resouce(), which walk through ppc64's lmb informaton. Because old kclist_add() is called per lmb, this patch makes no difference in behavior, finally. And this patch removes CONFIG_MEMORY_HOTPLUG check from this function. Because pfn_valid() just show "there is memmap or not* and cannot be used for "there is physical memory or not", this function is useful in generic to scan physical memory range. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: WANG Cong <xiyou.wangcong@gmail.com> Cc: Américo Wang <xiyou.wangcong@gmail.com> Cc: David Rientjes <rientjes@google.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| .. | ||
| ehca_av.c | ||
| ehca_classes_pSeries.h | ||
| ehca_classes.h | ||
| ehca_cq.c | ||
| ehca_eq.c | ||
| ehca_hca.c | ||
| ehca_irq.c | ||
| ehca_irq.h | ||
| ehca_iverbs.h | ||
| ehca_main.c | ||
| ehca_mcast.c | ||
| ehca_mrmw.c | ||
| ehca_mrmw.h | ||
| ehca_pd.c | ||
| ehca_qes.h | ||
| ehca_qp.c | ||
| ehca_reqs.c | ||
| ehca_sqp.c | ||
| ehca_tools.h | ||
| ehca_uverbs.c | ||
| hcp_if.c | ||
| hcp_if.h | ||
| hcp_phyp.c | ||
| hcp_phyp.h | ||
| hipz_fns_core.h | ||
| hipz_fns.h | ||
| hipz_hw.h | ||
| ipz_pt_fn.c | ||
| ipz_pt_fn.h | ||
| Kconfig | ||
| Makefile | ||