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| author | Sebastian Andrzej Siewior <sebastian@breakpoint.cc> | 2010-03-21 22:52:23 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-07-05 11:15:29 -0700 |
| commit | 3a75987c127c12b27911fa583d1e9598c4702c8c (patch) | |
| tree | fb1c73faeacbab3d579b24a6c472e1d7e5b4f4e1 /drivers | |
| parent | 9554afc9830c730356aa9a773e9b28ecbdfa32e3 (diff) | |
| download | kernel-crypto-3a75987c127c12b27911fa583d1e9598c4702c8c.tar.gz kernel-crypto-3a75987c127c12b27911fa583d1e9598c4702c8c.tar.xz kernel-crypto-3a75987c127c12b27911fa583d1e9598c4702c8c.zip | |
libata: don't flush dcache on slab pages
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ata/libata-sff.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 730ef3c384c..06e7204d7b9 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -893,7 +893,7 @@ static void ata_pio_sector(struct ata_queued_cmd *qc) do_write); } - if (!do_write) + if (!do_write && !PageSlab(page)) flush_dcache_page(page); qc->curbytes += qc->sect_size; |