vfs: wrap write f_ops with file_{start,end}_write()

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Before calling write f_ops, call file_start_write() instead
of sb_start_write().

Replace {sb,file}_start_write() for {copy,clone}_file_range() and
for fallocate().

Beyond correct semantics, this avoids freeze protection to sb when
operating on special inodes, such as fallocate() on a blockdev.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

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Amir Goldstein 2017-01-31 10:34:57 +02:00 • committed by Miklos Szeredi

parent 11cbfb1077

commit bfe219d373

3 changed files with 17 additions and 17 deletions

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26

include/linux/fs.h

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