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| author | Yasunori Goto <y-goto@jp.fujitsu.com> | 2006-05-31 06:25:42 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-01 01:27:10 +0200 |
| commit | 25a6df952542ad9f284421b6ffe28f3eb3df1305 (patch) | |
| tree | 8b0649ff83f5455fcca4f255bf2189a5cbf81fc8 /ipc | |
| parent | [PATCH] fbcon: fix scrollback with logo issue immediately after boot (diff) | |
| download | linux-25a6df952542ad9f284421b6ffe28f3eb3df1305.tar.xz linux-25a6df952542ad9f284421b6ffe28f3eb3df1305.zip | |
[PATCH] spanned_pages is not updated at a case of memory hot-add
From: Yasunori Goto <y-goto@jp.fujitsu.com>
If hot-added memory's address is smaller than old area, spanned_pages will
not be updated. It must be fixed.
example) Old zone_start_pfn = 0x60000, and spanned_pages = 0x10000
Added new memory's start_pfn = 0x50000, and end_pfn = 0x60000
new spanned_pages will be still 0x10000 by old code.
(It should be updated to 0x20000.) Because old_zone_end_pfn will be
0x70000, and end_pfn smaller than it. So, spanned_pages will not be
updated.
In current code, spanned_pages is updated only when end_pfn is updated.
But, it should be updated by subtraction between bigger end_pfn and new
zone_start_pfn.
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'ipc')
0 files changed, 0 insertions, 0 deletions