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| author | Sebastian Andrzej Siewior <sebastian@breakpoint.cc> | 2010-03-22 00:52:23 +0300 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2010-05-15 01:50:05 +0400 |
| commit | 3842e835490cdf17013b30a788f6311bdcfd0571 (patch) | |
| tree | 8468746d8f024d262fc53a7972f184792367b201 /drivers/ata/libata-sff.c | |
| parent | 276a47a93dbfe5d35261451925020f65cdbfcce8 (diff) | |
| download | linux-3842e835490cdf17013b30a788f6311bdcfd0571.tar.xz | |
libata: don't flush dcache on slab pages
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>
Cc: stable@kernel.org
Diffstat (limited to 'drivers/ata/libata-sff.c')
| -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 b7f7f8557fee..c0a905438896 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -919,7 +919,7 @@ 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; |