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f2fs: fix encrypted page memory leak 

For IPU path of f2fs_do_write_data_page(), in its error path, we
need to release encrypted page and fscrypt context, otherwise it
will cause memory leak.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
hifive-unleashed-5.1
Chao Yu 2019-02-21 20:37:14 +08:00 committed by Jaegeuk Kim
parent dc37910d4c
commit 6492a335fd
1 changed files with 7 additions and 2 deletions
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9
fs/f2fs/data.c
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@ -1861,8 +1861,13 @@ got_it:
if (fio->need_lock == LOCK_REQ)
f2fs_unlock_op(fio->sbi);
err = f2fs_inplace_write_data(fio);
if (err && PageWriteback(page))
end_page_writeback(page);
if (err) {
if (f2fs_encrypted_file(inode))
fscrypt_pullback_bio_page(&fio->encrypted_page,
true);
if (PageWriteback(page))
end_page_writeback(page);
}
trace_f2fs_do_write_data_page(fio->page, IPU);
set_inode_flag(inode, FI_UPDATE_WRITE);
return err;