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| author | Stefan Haberland <[email protected]> | 2016-02-12 13:50:52 +0000 |
|---|---|---|
| committer | Martin Schwidefsky <[email protected]> | 2016-02-17 08:24:07 +0000 |
| commit | 12d319b920fa673a4d5e7c1785c5dc82dcd15257 (patch) | |
| tree | d118d395bbbe32bb3295ce739fcf63b63e45943d /fs/jbd2/commit.c | |
| parent | s390/maccess: reduce stnsm instructions (diff) | |
| download | kernel-12d319b920fa673a4d5e7c1785c5dc82dcd15257.tar.gz kernel-12d319b920fa673a4d5e7c1785c5dc82dcd15257.zip | |
s390/dasd: fix performance drop
Commit ca369d51b ("sd: Fix device-imposed transfer length limits")
introduced a new queue limit max_dev_sectors which limits the maximum
sectors for requests. The default value leads to small dasd requests
and therefor to a performance drop.
Set the max_dev_sectors value to the same value as the max_hw_sectors
to use the maximum available request size for DASD devices.
Signed-off-by: Stefan Haberland <[email protected]>
Cc: [email protected] # 4.4+
Signed-off-by: Martin Schwidefsky <[email protected]>
Diffstat (limited to 'fs/jbd2/commit.c')
0 files changed, 0 insertions, 0 deletions