NFS: Fix an ABBA issue in nfs_lock_and_join_requests()

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All other callers of nfs_page_group_lock() appear to already hold the
page lock on the head page, so doing it in the opposite order here
is inefficient, although not deadlock prone since we roll back all
locks on contention.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

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Trond Myklebust 2017-07-17 10:29:32 -04:00

parent 7cb9cd9aa2

commit a0e265bc78

1 changed files with 17 additions and 12 deletions

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29

fs/nfs/write.c

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