nfsd: use vfs_fsync for non-directories

Instead of opencoding the fsync calling sequence use vfs_fsync.  This also
gets rid of the useless i_mutex over the data writeout.

Consolidate the remaining special code for syncing directories and document
it's quirks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Christoph Hellwig 2009-12-25 17:45:13 +01:00 • committed by J. Bruce Fields
commit 6a68f89ee1