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| author | Mark Brown <broonie@kernel.org> | 2021-05-18 17:24:52 +0100 |
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| committer | Mark Brown <broonie@kernel.org> | 2021-05-18 17:24:52 +0100 |
| commit | c37fe6aff89cb0d842993fe2f69e48bf3ebe0ab0 (patch) | |
| tree | 2a322c48218f7006bab789b7bf16ec58b129a096 /Documentation/ABI/testing/sysfs-class-rnbd-client | |
| parent | d7aed20d446d8c87f5e13adf73281056b0064a45 (diff) | |
| parent | d07f6ca923ea0927a1024dfccafc5b53b61cfecc (diff) | |
| download | linux-c37fe6aff89cb0d842993fe2f69e48bf3ebe0ab0.tar.bz2 | |
Merge tag 'v5.13-rc2' into spi-5.13
Linux 5.13-rc2
Diffstat (limited to 'Documentation/ABI/testing/sysfs-class-rnbd-client')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-rnbd-client | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-rnbd-client b/Documentation/ABI/testing/sysfs-class-rnbd-client index 2aa05b3e348e..0b5997ab3365 100644 --- a/Documentation/ABI/testing/sysfs-class-rnbd-client +++ b/Documentation/ABI/testing/sysfs-class-rnbd-client @@ -85,6 +85,19 @@ Description: Expected format is the following:: By default "rw" is used. + nr_poll_queues + specifies the number of poll-mode queues. If the IO has HIPRI flag, + the block-layer will send the IO via the poll-mode queue. + For fast network and device the polling is faster than interrupt-base + IO handling because it saves time for context switching, switching to + another process, handling the interrupt and switching back to the + issuing process. + + Set -1 if you want to set it as the number of CPUs + By default rnbd client creates only irq-mode queues. + + NOTICE: MUST make a unique session for a device using the poll-mode queues. + Exit Codes: If the device is already mapped it will fail with EEXIST. If the input |