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authorNathan Zimmer <nzimmer@sgi.com>2013-02-21 23:15:08 (GMT)
committerIngo Molnar <mingo@kernel.org>2013-02-22 09:27:24 (GMT)
commitcb152ff26717961b10d0888cd983ba284cb99cd1 (patch)
treefa23de9f176321a54e60529e21389f1ac930bc30 /block/blk-flush.c
parent1c3e826482ab698e418c7a894440e62c76aac893 (diff)
downloadlinux-cb152ff26717961b10d0888cd983ba284cb99cd1.tar.xz
sched: Fix /proc/sched_stat failure on very very large systems
On systems with 4096 cores doing a cat /proc/sched_stat fails, because we are trying to push all the data into a single kmalloc buffer. The issue is on these very large machines all the data will not fit in 4mb. A better solution is to not use the single_open() mechanism but to provide our own seq_operations. The output should be identical to previous version and thus not need the version number. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Nathan Zimmer <nzimmer@sgi.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wu Fengguang <fengguang.wu@intel.com> [ Fix memleak] [ Fix spello in comment] [ Fix warnings] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'block/blk-flush.c')
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