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authorJens Axboe <[email protected]>2007-07-16 21:17:16 +0200
committerJens Axboe <[email protected]>2007-10-16 11:08:51 +0200
commit70eb8040dc81212c884a464b75e37dca8014f3ad (patch)
tree79d23b3ef2635032e6060dfa9b06e4f885a8cb10 /tools/perf/scripts/python
parentc6132da1704be252ee6c923f47501083d835c238 (diff)
Add chained sg support to linux/scatterlist.h
The core of the patch - allow the last sg element in a scatterlist table to point to the start of a new table. We overload the LSB of the page pointer to indicate whether this is a valid sg entry, or merely a link to the next list. Includes a fix from Bartlomiej Zolnierkiewicz <[email protected]> correcting the ifdef ARCH_HAS_SG_CHAIN guarding sg_last(). Signed-off-by: Jens Axboe <[email protected]>
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