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| author | Christoph Hellwig <hch@lst.de> | 2014-09-06 16:08:05 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-10-21 14:02:54 -0600 |
| commit | 34b48db66e08ca1c1bc07cf305d672ac940268dc (patch) | |
| tree | 06fc3e6639a492eb14c326bd8697c1ba9907c9da /block | |
| parent | c2661b806092d8ea2dccb7b02b65776555e0ee47 (diff) | |
| download | linux-34b48db66e08ca1c1bc07cf305d672ac940268dc.tar.gz linux-34b48db66e08ca1c1bc07cf305d672ac940268dc.tar.bz2 linux-34b48db66e08ca1c1bc07cf305d672ac940268dc.zip | |
block: remove artifical max_hw_sectors cap
Set max_sectors to the value the drivers provides as hardware limit by
default. Linux had proper I/O throttling for a long time and doesn't
rely on a artifically small maximum I/O size anymore. By not limiting
the I/O size by default we remove an annoying tuning step required for
most Linux installation.
Note that both the user, and if absolutely required the driver can still
impose a limit for FS requests below max_hw_sectors_kb.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-settings.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/block/blk-settings.c b/block/blk-settings.c index aa02247d227e..6ed2cbe5e8c9 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -257,9 +257,7 @@ void blk_limits_max_hw_sectors(struct queue_limits *limits, unsigned int max_hw_ __func__, max_hw_sectors); } - limits->max_hw_sectors = max_hw_sectors; - limits->max_sectors = min_t(unsigned int, max_hw_sectors, - BLK_DEF_MAX_SECTORS); + limits->max_sectors = limits->max_hw_sectors = max_hw_sectors; } EXPORT_SYMBOL(blk_limits_max_hw_sectors); |