diff options
| -rw-r--r-- | fs/fs-writeback.c | 43 |
1 files changed, 23 insertions, 20 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 916e83489caa..15e375bf93e6 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -750,29 +750,32 @@ static long wb_writeback(struct bdi_writeback *wb, wrote += MAX_WRITEBACK_PAGES - wbc.nr_to_write; /* - * If we ran out of stuff to write, bail unless more_io got set + * If we consumed everything, see if we have more */ - if (wbc.nr_to_write > 0) { - if (wbc.more_io) { - if (wbc.nr_to_write < MAX_WRITEBACK_PAGES) - continue; - /* - * Nothing written. Wait for some inode to - * become available for writeback. Otherwise - * we'll just busyloop. - */ - spin_lock(&inode_lock); - if (!list_empty(&wb->b_more_io)) { - inode = list_entry( - wb->b_more_io.prev, - struct inode, i_list); - inode_wait_for_writeback(inode); - } - spin_unlock(&inode_lock); - continue; - } + if (wbc.nr_to_write <= 0) + continue; + /* + * Didn't write everything and we don't have more IO, bail + */ + if (!wbc.more_io) break; + /* + * Did we write something? Try for more + */ + if (wbc.nr_to_write < MAX_WRITEBACK_PAGES) + continue; + /* + * Nothing written. Wait for some inode to + * become available for writeback. Otherwise + * we'll just busyloop. + */ + spin_lock(&inode_lock); + if (!list_empty(&wb->b_more_io)) { + inode = list_entry(wb->b_more_io.prev, + struct inode, i_list); + inode_wait_for_writeback(inode); } + spin_unlock(&inode_lock); } return wrote; |