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| author | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2011-02-06 07:28:06 -0500 |
|---|---|---|
| committer | Matthew Wilcox <matthew.r.wilcox@intel.com> | 2011-11-04 15:52:55 -0400 |
| commit | 58ffacb545f76fc2c65d1fbfa5acf5184a2a09e6 (patch) | |
| tree | 382cf8004b88f9d2bd2b86d78121938afa863e42 /sound | |
| parent | b1ad37efcafe396ac3944853589688dd0ec3c64e (diff) | |
| download | blackbird-op-linux-58ffacb545f76fc2c65d1fbfa5acf5184a2a09e6.tar.gz blackbird-op-linux-58ffacb545f76fc2c65d1fbfa5acf5184a2a09e6.zip | |
NVMe: Add a module parameter to use a threaded interrupt
We're currently calling bio_endio from hard interrupt context. This is
not a good idea for preemptible kernels as it will cause longer latencies.
Using a threaded interrupt will run the entire queue processing mechanism
(including bio_endio) in a thread, which can be preempted. Unfortuantely,
it also adds about 7us of latency to the single-I/O case, so make it a
module parameter for the moment.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Diffstat (limited to 'sound')
0 files changed, 0 insertions, 0 deletions
