diff options
| -rw-r--r-- | fs/ext4/inode.c | 18 | ||||
| -rw-r--r-- | include/linux/writeback.h | 2 |
2 files changed, 17 insertions, 3 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 6671fcbb5293..c9ea95ba5fde 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2809,16 +2809,21 @@ static int write_cache_pages_da(struct address_space *mapping, pgoff_t index; pgoff_t end; /* Inclusive */ long nr_to_write = wbc->nr_to_write; + int tag; pagevec_init(&pvec, 0); index = wbc->range_start >> PAGE_CACHE_SHIFT; end = wbc->range_end >> PAGE_CACHE_SHIFT; + if (wbc->sync_mode == WB_SYNC_ALL) + tag = PAGECACHE_TAG_TOWRITE; + else + tag = PAGECACHE_TAG_DIRTY; + while (!done && (index <= end)) { int i; - nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, - PAGECACHE_TAG_DIRTY, + nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, tag, min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1); if (nr_pages == 0) break; @@ -2923,6 +2928,7 @@ static int ext4_da_writepages(struct address_space *mapping, long desired_nr_to_write, nr_to_writebump = 0; loff_t range_start = wbc->range_start; struct ext4_sb_info *sbi = EXT4_SB(mapping->host->i_sb); + pgoff_t end; trace_ext4_da_writepages(inode, wbc); @@ -2958,8 +2964,11 @@ static int ext4_da_writepages(struct address_space *mapping, wbc->range_start = index << PAGE_CACHE_SHIFT; wbc->range_end = LLONG_MAX; wbc->range_cyclic = 0; - } else + end = -1; + } else { index = wbc->range_start >> PAGE_CACHE_SHIFT; + end = wbc->range_end >> PAGE_CACHE_SHIFT; + } /* * This works around two forms of stupidity. The first is in @@ -3000,6 +3009,9 @@ static int ext4_da_writepages(struct address_space *mapping, pages_skipped = wbc->pages_skipped; retry: + if (wbc->sync_mode == WB_SYNC_ALL) + tag_pages_for_writeback(mapping, index, end); + while (!ret && wbc->nr_to_write > 0) { /* diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 72a5d647a5f2..3d132bfb4f3d 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -143,6 +143,8 @@ typedef int (*writepage_t)(struct page *page, struct writeback_control *wbc, int generic_writepages(struct address_space *mapping, struct writeback_control *wbc); +void tag_pages_for_writeback(struct address_space *mapping, + pgoff_t start, pgoff_t end); int write_cache_pages(struct address_space *mapping, struct writeback_control *wbc, writepage_t writepage, void *data); |