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Qu Wenruo c3ece6b7ff btrfs: change BTRFS_MOUNT_* flags to 64bit type
Currently the BTRFS_MOUNT_* flags are already beyond 32 bits, this is
going to cause compilation errors for some 32 bit systems, as their
unsigned long is only 32 bits long, thus flag
BTRFS_MOUNT_IGNORESUPERFLAGS overflows and can lead to errors.

Fix the problem by:

- Migrate all existing BTRFS_MOUNT_* flags to unsigned long long
- Migrate all mount option related variables to unsigned long long
  * btrfs_fs_info::mount_opt
  * btrfs_fs_context::mount_opt
  * mount_opt parameter of btrfs_check_options()
  * old_opts parameter of btrfs_remount_begin()
  * old_opts parameter of btrfs_remount_cleanup()
  * mount_opt parameter of btrfs_check_mountopts_zoned()
  * mount_opt and opt parameters of check_ro_option()

Fixes: 32e6216512 ("btrfs: introduce new "rescue=ignoresuperflags" mount option")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
History 2024-07-19 17:20:23 +02:00
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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 reStructuredText 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.