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| author | Christoph Hellwig <hch@infradead.org> | 2011-12-21 14:20:31 -0500 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2012-02-25 14:37:46 -0800 |
| commit | d5b4a21b3dc116b477c1b1b493233a73aacbb440 (patch) | |
| tree | f11a6274442cb2e5a1ab6209661dbdd8969eb76e /drivers/target/iscsi | |
| parent | 6e315a066d7d1917f762d2f2a14e9a71a8656fea (diff) | |
| download | linux-d5b4a21b3dc116b477c1b1b493233a73aacbb440.tar.gz linux-d5b4a21b3dc116b477c1b1b493233a73aacbb440.tar.xz linux-d5b4a21b3dc116b477c1b1b493233a73aacbb440.zip | |
target: increase iblock task sizes
There is no real limit for task sizes in the iblock driver given that we
can chain bios. Increase the maximum size to UINT_MAX, and change the
code to submit bios in a smaller batch size to avoid deadlocks when
having more bios in flight than the pool supports. Also increase the
pool size to always allow multiple tasks to be in flight.
I also had to change the task refcounting to include one reference for
the submission task, which is a standard practice in this kind of code
in Linux (e.g. XFS I/O submission). This was wrong before, but couldn't
be hit easily.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/iscsi')
0 files changed, 0 insertions, 0 deletions