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-rw-r--r--fs/f2fs/node.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 8e331d5..b527ed4 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1148,6 +1148,46 @@ continue_unlock:
return nwritten;
}
+int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino)
+{
+ struct address_space *mapping = sbi->node_inode->i_mapping;
+ pgoff_t index = 0, end = LONG_MAX;
+ struct pagevec pvec;
+ int nr_pages;
+ int ret2 = 0, ret = 0;
+
+ pagevec_init(&pvec, 0);
+ while ((index <= end) &&
+ (nr_pages = pagevec_lookup_tag(&pvec, mapping, &index,
+ PAGECACHE_TAG_WRITEBACK,
+ min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1)) != 0) {
+ unsigned i;
+
+ for (i = 0; i < nr_pages; i++) {
+ struct page *page = pvec.pages[i];
+
+ /* until radix tree lookup accepts end_index */
+ if (page->index > end)
+ continue;
+
+ if (ino && ino_of_node(page) == ino)
+ wait_on_page_writeback(page);
+ if (TestClearPageError(page))
+ ret = -EIO;
+ }
+ pagevec_release(&pvec);
+ cond_resched();
+ }
+
+ if (test_and_clear_bit(AS_ENOSPC, &mapping->flags))
+ ret2 = -ENOSPC;
+ if (test_and_clear_bit(AS_EIO, &mapping->flags))
+ ret2 = -EIO;
+ if (!ret)
+ ret = ret2;
+ return ret;
+}
+
static int f2fs_write_node_page(struct page *page,
struct writeback_control *wbc)
{