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834f1565fa
fscrypt_decrypt_pagecache_blocks() can fail, because it uses skcipher_request_alloc(), which uses kmalloc(), which can fail; and also because it calls crypto_skcipher_decrypt(), which can fail depending on the driver that actually implements the crypto. Therefore it's not appropriate to WARN on decryption error in __ext4_block_zero_page_range(). Remove the WARN and just handle the error instead. Signed-off-by: Eric Biggers <ebiggers@google.com> Link: https://lore.kernel.org/r/20191226154105.4704-1-ebiggers@kernel.org Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.