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ext4: Add mount option to set kjournald's I/O priority

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Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Theodore Ts'o
2009-01-05 22:46:26 -05:00
parent 40a1984d22
commit b3881f74b3
4 changed files with 36 additions and 5 deletions
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7
Documentation/filesystems/ext4.txt
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@@ -308,6 +308,13 @@ min_batch_time=usec This parameter sets the commit time (as
multi-threaded, synchronous workloads on very
fast disks, at the cost of increasing latency.
journal_ioprio=prio The I/O priority (from 0 to 7, where 0 is the
highest priorty) which should be used for I/O
operations submitted by kjournald2 during a
commit operation. This defaults to 3, which is
a slightly higher priority than the default I/O
priority.
Data Mode
=========
There are 3 different data modes: