[SCSI] libfc: tune fc_exch_em_alloc() to be O(2)

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For allocating new exch from pool,  scanning for free slot in exch
array fluctuates when exch pool is close to exhaustion.

The fluctuation is smoothed, and the scan looks to be O(2).

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

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Hillf Danton 2010-11-30 16:18:17 -08:00 • committed by James Bottomley

parent 8236554a27

commit 2034c19ce8

1 changed files with 33 additions and 3 deletions

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36

drivers/scsi/libfc/fc_exch.c

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