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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 11:10:31 -0700 |
| commit | 8b867c02502f86a737e2ec747b0ef15ad93dc6e2 (patch) | |
| tree | 12d25b494a0a4fbe507d01acf959e7e7deea2c6e /drivers/ata | |
| parent | bf874fa732c8499a46f2f63a9f973322241955a9 (diff) | |
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/ata')
| -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 2ae15c3b22a..776a8959944 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; |