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authorJens Axboe <jens.axboe@oracle.com>2010-05-19 21:03:16 +0200
committerJens Axboe <jens.axboe@oracle.com>2010-05-21 21:12:52 +0200
commitb492e95be0ae672922f4734acf3f5d35c30be948 (patch)
treea8a1e7f035903796e6b8f626add8d269bf989a35 /net/sched/sch_red.c
parentpipe: add support for shrinking and growing pipes (diff)
downloadlinux-b492e95be0ae672922f4734acf3f5d35c30be948.tar.xz
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pipe: set lower and upper limit on max pages in the pipe page array
We need at least two to guarantee proper POSIX behaviour, so never allow a smaller limit than that. Also expose a /proc/sys/fs/pipe-max-pages sysctl file that allows root to define a sane upper limit. Make it default to 16 times the default size, which is 16 pages. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'net/sched/sch_red.c')
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