fs: Introduce filemap_range_has_page()

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filemap_range_has_page() return true if the file's mapping has
a page within the range mentioned. This function will be used
to check if a write() call will cause a writeback of previous
writes.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Goldwyn Rodrigues 2017-06-20 07:05:41 -05:00 • committed by Jens Axboe

parent fdd2f5b7de

commit 7fc9e47224

2 changed files with 34 additions and 0 deletions

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include/linux/fs.h

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