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authorSteve French <sfrench@us.ibm.com>2006-03-05 03:39:55 +0000
committerSteve French <sfrench@us.ibm.com>2006-03-05 03:39:55 +0000
commite77e6f3be93763ef88ccbaa9e0ebda5360d92f7c (patch)
tree35260c1d1968c448af77c267814d925d3c62f475 /fs/fifo.c
parent501f74f29498543c27f4f9697f5c1e980dd2de0d (diff)
[CIFS] Always match oplock break (cache notification) to the right tcp
session when multiply mounted. Fixes slow response when cifs client is mounted to shares on multiple servers and oplock break occurs (usually due to attempt to multiply open a file). When treeids on mutiple mounted shares match and we find the wrong match first, we searched for the wrong cached files to send oplock break response for which usually meant that no matching file was found and thus the server would have to timeout the notification. Oplock break timeout is about 20 seconds on some servers so this could cause significantly slower performance on file open calls in a few cases (in particular when multiple shares are mounted from multiple servers, tree ids match, and we have a cached file which is later opened multiple times). This was the most important of the bugs that was found and fixed at Connectathon (interoperability testing event) this week. Acked-by: Shaggy (shaggy@austin.ibm.com) Signed-off-by: Steve French (sfrench@us.ibm.com)
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