Christoph Hellwig <hch@xxxxxxxxxxxxx> writes: > On Wed, May 11, 2011 at 12:24:58AM +0900, OGAWA Hirofumi wrote: >> > under writeback and when it's freed no writeback is started. >> >> Sure for data -> data reallocated case. metadata -> data/metadata is >> still there. > > That's usually handled differently. For XFS take a look at the > xfs_alloc_busy_* function. For 2.6.40 they've been mostly rewritten > to rarely wait for the reuse but instead avoid busy blocks. But that's > a real data integrity issue even without stable pages for I/O. Sounds good. So... Are you suggesting this series should use better approach than just blocking? Thanks. -- OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
