tree 2bdee522ce482f06a9f3adc8e66e4ff23be06860
parent 60b11392f1a09433740bda3048202213daa27736
author Mark Fasheh <mark.fasheh@oracle.com> 1172775715 -0800
committer Mark Fasheh <mark.fasheh@oracle.com> 1177624946 -0700

[PATCH] Turn do_sync_file_range() into do_sync_mapping_range()

do_sync_file_range() accepts a file * from which it takes an address_space to
sync.  Abstract out the bulk of the function into do_sync_mapping_range()
which takes the address_space directly.  This way callers who want to sync an
address_space directly can take advantage of the functionality provided.

do_sync_file_range() is preserved as a small wrapper around
do_sync_mapping_range().

Ocfs2 in particular would like to use this to initiate a sync of a specific
inode range during truncate, where a file * may not be available.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>