nfs: don't create zero-length requests

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commit 149a4fddd0 upstream.

NFS doesn't expect requests with wb_bytes set to zero and may make
unexpected decisions about how to handle that request at the page IO layer.
Skip request creation if we won't have any wb_bytes in the request.

Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Benjamin Coddington 2016-07-18 10:41:57 -04:00 • committed by Greg Kroah-Hartman

parent 4fa571ebe6

commit 3d6562fded

1 changed files with 4 additions and 1 deletions

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fs/nfs/write.c

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