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| author | Malahal Naineni <malahal@us.ibm.com> | 2010-09-24 20:25:49 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-09-24 20:27:16 +0200 |
| commit | c49825facfd4969585224a896a5e717f88450cad (patch) | |
| tree | 2c244fdf033f858147875333024838e493d9e43e /block/blk-lib.c | |
| parent | 4b1977698ceb4c4caa800d475127139da49966f9 (diff) | |
| download | op-kernel-dev-c49825facfd4969585224a896a5e717f88450cad.zip op-kernel-dev-c49825facfd4969585224a896a5e717f88450cad.tar.gz | |
block: set the bounce_pfn to the actual DMA limit rather than to max memory
The bounce_pfn of the request queue in 64 bit systems is set to the
current max_low_pfn. Adding more memory later makes this incorrect.
Memory allocated beyond this boot time max_low_pfn appear to require
bounce buffers (bounce buffers are actually not allocated but used in
calculating segments that may result in "over max segments limit"
errors).
Signed-off-by: Malahal Naineni <malahal@us.ibm.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'block/blk-lib.c')
0 files changed, 0 insertions, 0 deletions
