diff options
Diffstat (limited to 'fs/ocfs2/aops.c')
| -rw-r--r-- | fs/ocfs2/aops.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index 7f66e3342475..91702ebffe84 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -1990,11 +1990,25 @@ int ocfs2_write_end_nolock(struct address_space *mapping, } if (unlikely(copied < len) && wc->w_target_page) { + loff_t new_isize; + if (!PageUptodate(wc->w_target_page)) copied = 0; - ocfs2_zero_new_buffers(wc->w_target_page, start+copied, - start+len); + new_isize = max_t(loff_t, i_size_read(inode), pos + copied); + if (new_isize > page_offset(wc->w_target_page)) + ocfs2_zero_new_buffers(wc->w_target_page, start+copied, + start+len); + else { + /* + * When page is fully beyond new isize (data copy + * failed), do not bother zeroing the page. Invalidate + * it instead so that writeback does not get confused + * put page & buffer dirty bits into inconsistent + * state. + */ + block_invalidatepage(wc->w_target_page, 0, PAGE_SIZE); + } } if (wc->w_target_page) flush_dcache_page(wc->w_target_page); |