| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 036/104] f2fs: fix missing up_read | Date | Thu, 24 Jan 2019 20:19:25 +0100 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Jaegeuk Kim <jaegeuk@kernel.org>
commit 89d13c38501df730cbb2e02c4499da1b5187119d upstream.
This patch fixes missing up_read call.
Fixes: c9b60788fc76 ("f2fs: fix to do sanity check with block address in main area") Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- fs/f2fs/node.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1342,8 +1342,10 @@ static int f2fs_write_node_page(struct p } if (__is_valid_data_blkaddr(ni.blk_addr) && - !f2fs_is_valid_blkaddr(sbi, ni.blk_addr, DATA_GENERIC)) + !f2fs_is_valid_blkaddr(sbi, ni.blk_addr, DATA_GENERIC)) { + up_read(&sbi->node_write); goto redirty_out; + } set_page_writeback(page); fio.blk_addr = ni.blk_addr;
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