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f2fs: should check the node page was truncated first 

Currently, f2fs doesn't reclaim any node pages.
However, if we found that a node page was truncated by checking its block
address with zero during f2fs_write_node_page, we should not skip that node
page and return zero to reclaim it.

Reviewed-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
hifive-unleashed-5.1
Jaegeuk Kim 2013-03-13 17:49:22 +09:00
parent 393ff91f57
commit 08d8058be6
1 changed files with 8 additions and 7 deletions
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15
fs/f2fs/node.c
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@ -1097,13 +1097,6 @@ static int f2fs_write_node_page(struct page *page,
block_t new_addr;
struct node_info ni;
if (wbc->for_reclaim) {
dec_page_count(sbi, F2FS_DIRTY_NODES);
wbc->pages_skipped++;
set_page_dirty(page);
return AOP_WRITEPAGE_ACTIVATE;
}
wait_on_page_writeback(page);
mutex_lock_op(sbi, NODE_WRITE);
@ -1118,6 +1111,14 @@ static int f2fs_write_node_page(struct page *page,
if (ni.blk_addr == NULL_ADDR)
goto out;
if (wbc->for_reclaim) {
dec_page_count(sbi, F2FS_DIRTY_NODES);
wbc->pages_skipped++;
set_page_dirty(page);
mutex_unlock_op(sbi, NODE_WRITE);
return AOP_WRITEPAGE_ACTIVATE;
}
set_page_writeback(page);
/* insert node offset */