mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-09-22 09:34:56 +02:00
Toshi Kani
ec215095ac
commitcce6c9f7e6upstream. Sync syscall to DAX file needs to flush processor cache, but it currently does not flush to existing DAX files. This is because 'ext4_da_aops' is set to address_space_operations of existing DAX files, instead of 'ext4_dax_aops', since S_DAX flag is set after ext4_set_aops() in the open path. New file -------- lookup_open ext4_create __ext4_new_inode ext4_set_inode_flags // Set S_DAX flag ext4_set_aops // Set aops to ext4_dax_aops Existing file ------------- lookup_open ext4_lookup ext4_iget ext4_set_aops // Set aops to ext4_da_aops ext4_set_inode_flags // Set S_DAX flag Change ext4_iget() to initialize i_flags before ext4_set_aops(). Fixes:5f0663bb4a("ext4, dax: introduce ext4_dax_aops") Signed-off-by: Toshi Kani <toshi.kani@hpe.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Suggested-by: Jan Kara <jack@suse.cz> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.