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author | Gerald Schaefer <gerald.schaefer@de.ibm.com> | 2008-11-06 20:53:36 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-11-06 23:41:19 (GMT) |
commit | a70dcb969f64e2fa98c24f47854f20bf02ff0092 (patch) | |
tree | 2224e321ba5d5455fd36ec2cf14f11ff97aa8931 /drivers | |
parent | c87591b719737b4e91eb1a9fa8fd55a4ff1886d6 (diff) | |
download | linux-fsl-qoriq-a70dcb969f64e2fa98c24f47854f20bf02ff0092.tar.xz |
memory hotplug: fix page_zone() calculation in test_pages_isolated()
My last bugfix here (adding zone->lock) introduced a new problem: Using
page_zone(pfn_to_page(pfn)) to get the zone after the for() loop is wrong.
pfn will then be >= end_pfn, which may be in a different zone or not
present at all. This may lead to an addressing exception in page_zone()
or spin_lock_irqsave().
Now I use __first_valid_page() again after the loop to find a valid page
for page_zone().
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Acked-by: Nathan Fontenot <nfont@austin.ibm.com>
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions