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f2fs: fix to unlock node page when it was truncated

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If the node page was truncated, its block address became zero.
This means that we don't need to write the node page, but have to unlock
NODE_WRITE, decrease the number of dirty node pages, and then unlock_page
before returning the f2fs_write_node_page with zero.

Reviewed-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Jaegeuk Kim 2013-03-13 17:45:15 +09:00
parent 12fc760fd6
commit 12faafe454
1 changed files with 2 additions and 2 deletions
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4
fs/f2fs/node.c
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@ -1106,15 +1106,15 @@ static int f2fs_write_node_page(struct page *page,
/* This page is already truncated */
if (ni.blk_addr == NULL_ADDR)
return 0;
goto out;
set_page_writeback(page);
/* insert node offset */
write_node_page(sbi, page, nid, ni.blk_addr, &new_addr);
set_node_addr(sbi, &ni, new_addr);
out:
dec_page_count(sbi, F2FS_DIRTY_NODES);
mutex_unlock_op(sbi, NODE_WRITE);
unlock_page(page);
return 0;