From: Chandan Rajendra <[email protected]> If decryption fails, ext4_block_write_begin() can return with the page's buffer_head marked with the BH_Uptodate flag. This commit clears the BH_Uptodate flag in such cases.
Signed-off-by: Chandan Rajendra <[email protected]> Signed-off-by: Eric Biggers <[email protected]> --- fs/ext4/inode.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 1ef5d791834fc..9382e1bcefe49 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1225,10 +1225,14 @@ static int ext4_block_write_begin(struct page *page, loff_t pos, unsigned len, if (!buffer_uptodate(*wait_bh)) err = -EIO; } - if (unlikely(err)) + if (unlikely(err)) { page_zero_new_buffers(page, from, to); - else if (decrypt) + } else if (decrypt) { err = fscrypt_decrypt_pagecache_blocks(page, PAGE_SIZE, 0); + if (err) + clear_buffer_uptodate(*wait_bh); + } + return err; } #endif -- 2.21.0.593.g511ec345e18-goog _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
