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authorJeff Layton <jeff.layton@primarydata.com>2019-08-18 14:18:56 -0400
committerJ. Bruce Fields <bfields@redhat.com>2019-08-19 11:09:09 -0400
commit501cb1849f865960501d19d54e6a5af306f9b6fd (patch)
treed2f4514084d664ce8d54fb7303d637949532c1ea /net
parent6b556ca2872be223176c1a1e249606248ce0b201 (diff)
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nfsd: rip out the raparms cache
The raparms cache was set up in order to ensure that we carry readahead information forward from one RPC call to the next. In other words, it was set up because each RPC call was forced to open a struct file, then close it, causing the loss of readahead information that is normally cached in that struct file, and used to keep the page cache filled when a user calls read() multiple times on the same file descriptor. Now that we cache the struct file, and reuse it for all the I/O calls to a given file by a given user, we no longer have to keep a separate readahead cache. Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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