| Date | Thu, 01 Jul 2010 10:33:10 -0700 | From | Greg KH <> | Subject | [patch 004/164] libata: dont flush dcache on slab pages |
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2.6.33-stable review patch. If anyone has any objections, please let me know.
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From: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
commit 3842e835490cdf17013b30a788f6311bdcfd0571 upstream.
page_mapping() check this via VM_BUG_ON(PageSlab(page)) so we bug here with the according debuging turned on.
Future TODO: replace this with a flush_dcache_page_for_pio() API
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- drivers/ata/libata-sff.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -893,7 +893,7 @@ static void ata_pio_sector(struct ata_qu do_write); } - if (!do_write) + if (!do_write && !PageSlab(page)) flush_dcache_page(page); qc->curbytes += qc->sect_size;
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