| commit | 9cc7bf7edf50a8a6b456b337aff97fe780ae369b | |
| author | Linas Vepstas <linas@austin.ibm.com> | |
| Tue, 10 Oct 2006 21:14:29 +0000 (10 16:14 -0500) | ||
| committer | Jeff Garzik <jeff@garzik.org> | |
| Wed, 11 Oct 2006 08:04:26 +0000 (11 04:04 -0400) | ||
| tree | 9512ef8f08a21ab7fa9398fdd31f1ad1810a4702 | treesnapshot (tar.gz zip) |
| parent | 68a8c609b3071c2441fa64f584d15311f2c10e61 | commitdiff |
[PATCH] powerpc/cell spidernet refine locking
The transmit side of the spider ethernet driver currently
places locks around some very large chunks of code. This
results in a fair amount of lock contention is some cases.
This patch makes the locks much more fine-grained, protecting
only the cirtical sections. One lock is used to protect
three locations: the queue head and tail pointers, and the
queue low-watermark location.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: James K Lewis <jklewis@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The transmit side of the spider ethernet driver currently
places locks around some very large chunks of code. This
results in a fair amount of lock contention is some cases.
This patch makes the locks much more fine-grained, protecting
only the cirtical sections. One lock is used to protect
three locations: the queue head and tail pointers, and the
queue low-watermark location.
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: James K Lewis <jklewis@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| drivers/net/spider_net.c | diffblobblamehistory |