fs: support IOCB_NOWAIT in generic_file_buffered_read
Allow generic_file_buffered_read to bail out early instead of waiting for the page lock or reading a page if IOCB_NOWAIT is specified. Signed-off-by:Milosz Tanski <milosz@adfin.com> Reviewed-by:
Christoph Hellwig <hch@lst.de> Reviewed-by:
Jeff Moyer <jmoyer@redhat.com> Acked-by:
Sage Weil <sage@redhat.com> Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
parent
47c27bc4
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