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| author |   Dwight Engen <dwight.engen@oracle.com> | 2014-09-19 09:42:53 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-09-30 14:37:35 -0700 |
| commit | 5eed69ffd248c9f68f56c710caf07db134aef28b (patch) | |
| tree | 6c5308b2f58cc6ceade6a149cf988966d61f956b /arch/sparc/include/asm/vio.h | |
| parent | sunvdc: compute vdisk geometry from capacity (diff) | |
| download | linux-dev-5eed69ffd248c9f68f56c710caf07db134aef28b.tar.xz linux-dev-5eed69ffd248c9f68f56c710caf07db134aef28b.zip | |
sunvdc: limit each sg segment to a page
ldc_map_sg() could fail its check that the number of pages referred to
by the sg scatterlist was <= the number of cookies.
This fixes the issue by doing a similar thing to the xen-blkfront driver,
ensuring that the scatterlist will only ever contain a segment count <=
port->ring_cookies, and each segment will be page aligned, and <= page
size. This ensures that the scatterlist is always mappable.
Orabug: 19347817
OraBZ: 15945
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include/asm/vio.h')
0 files changed, 0 insertions, 0 deletions