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authorKrzysztof Halasa <khc@pm.waw.pl>2010-01-08 17:42:36 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2010-01-11 12:34:04 -0500
commit42d53b4ff7d61487d18274ebdf1f70c1aef6f122 (patch)
tree55ef141c2c6e9ef52c724dd6aec03a8708d288b1 /kernel/kmod.c
parente992cd9b72a18122bd5c958715623057f110793f (diff)
dma-debug: allow DMA_BIDIRECTIONAL mappings to be synced with DMA_FROM_DEVICE and
There is no need to perform full BIDIR sync (copying the buffers in case of swiotlb and similar schemes) if we know that the owner (CPU or device) hasn't altered the data. Addresses the false-positive reported at http://bugzilla.kernel.org/show_bug.cgi?id=14169 Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl> Cc: David Miller <davem@davemloft.net> Cc: Joerg Roedel <joerg.roedel@amd.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/kmod.c')
0 files changed, 0 insertions, 0 deletions