| commit | 2d68b7fe55d9e19a8a868224ed0dfd6526568521 | [log] [tgz] |
|---|---|---|
| author | Catalin Marinas <catalin.marinas@arm.com> | Thu Feb 04 01:04:50 2010 -0500 |
| committer | Jeff Garzik <jgarzik@redhat.com> | Thu Feb 04 01:04:50 2010 -0500 |
| tree | f18068b57359ddc0be3d5fba6f8eabc097efd1af | |
| parent | cedc9bf906dae044443d403371c887affdb44168 [diff] |
[libata] Call flush_dcache_page after PIO data transfers in libata-sff.c flush_dcache_page() must be called after (!ATA_TFLAG_WRITE) the data copying to avoid D-cache aliasing with user space or I-D cache coherency issues (when reading data from an ATA device using PIO, the kernel dirties the D-cache but there is no flush_dcache_page() required on Harvard architectures). Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>