Quoting Steve French (2013-05-15 16:21:12) > On Wed, May 15, 2013 at 3:16 PM, Chris Mason <chris.mason@xxxxxxxxxxxx> wrote: > > truncate_inode_pages_range ends with invalidate. It just locks the page > > first and makes sure to wait for writeback if it was already in > > progress. > > Does > > truncate_inode_pages_range(&inode->i_data, destoff, > PAGE_CACHE_ALIGN(destoff + len) - 1); > > > I also am worried about what does: > > 1) writing out data from start of previous page up to destoff (if > destoff not page aligned, and first page dirty) > 2) writing out data from dest+len through end of page (if destoff not > page aligned, and last page dirty) > > before tossing first through last page out It does a check for a partial first page (sending down the partial offset to invalidatepage), but the last page is fully truncated. -chris -- 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
