mirror of
https://github.com/torvalds/linux.git
synced 2024-09-29 11:23:16 +00:00
4894710951
The current code locks the QP s_lock, followed by the pending_lock, I guess to to protect against the allocate failing. This patch only locks the pending_lock, assuming that the empty case is an exeception, in which case the pending_lock is dropped, and the original code is executed. This will save a lock of s_lock in the normal case. The observation is that the sdma descriptors will deplete at twice the rate of txreq's, so this should be rare. Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <roland@purestorage.com> |
||
|---|---|---|
| .. | ||
| core | ||
| hw | ||
| ulp | ||
| Kconfig | ||
| Makefile | ||