NFS: Reduce lock contention in nfs_page_find_head_request()

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Add a lockless check for whether or not the page might be carrying
an existing writeback before we grab the inode->i_lock.

Reported-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

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Trond Myklebust 2017-07-17 09:30:13 -04:00

parent 6d17d653c9

commit 82749dd4ef

1 changed files with 5 additions and 3 deletions

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8

fs/nfs/write.c

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