daos-stack
DAOS-8722 dfuse: Force kernel to block on opendir.
When readdir caching is enabled only allow one process to open a directory initially, then on close allow all blocked processes to complete the open.
The kernel can cache readdir results, but the cache can only be accessed if it's full by the time the readdir starts, so in order to make use of this in parallel applications doing simultanous reads we only allow one process to enter the complete the opendir initally, and then on closedir we complete all other opendir requests which should allow any others to read from the cache.
Signed-off-by: Ashley Pittman [email protected]
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Bug-tracker data: Ticket title is 'Test and extend readdir caching in dfuse.' Status is 'In Progress' Labels: 'triaged' Job should run at elevated priority (3) https://daosio.atlassian.net/browse/DAOS-8722
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