tree 4b91f307c89e0c064de577f232913d1fc916cdc8
parent 69ff2826117f1cde9a2491be57a578212bca551e
author Christoph Hellwig <hch@infradead.org> 1341332400 -0400
committer Ben Myers <bpm@sgi.com> 1342971776 -0500

xfs: handle EOF correctly in xfs_vm_writepage

We need to zero out part of a page which beyond EOF before setting uptodate,
otherwise, mapread or write will see non-zero data beyond EOF.

Based on the code in fs/buffer.c and the following ext4 commit:

  ext4: handle EOF correctly in ext4_bio_write_page()

And yes, I wish we had a good test case for it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>