55eb942eda
Add a new "buffered_io" attribute, which disabled direct I/O and thus enables page cache based caching when enabled. The attribute can only be changed when the namespace is disabled as the file has to be reopend for the change to take effect. The possibly blocking read/write are deferred to a newly introduced global workqueue. Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de> |
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