Commits
Darrick J. Wong committed e53c4b59837
xfs: ensure post-EOF zeroing happens after zeroing part of a file If a user asks us to zero_range part of a file, the end of the range is EOF, and not aligned to a page boundary, invoke writeback of the EOF page to ensure that the post-EOF part of the page is zeroed. This ensures that we don't expose stale memory contents via mmap, if in a clumsy manner. Found by running generic/127 when it runs zero_range and mapread at EOF one after the other. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Allison Henderson <allison.henderson@oracle.com>