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Nikolay Borisov 7dfb8be11b btrfs: Round down values which are written for total_bytes_size 
We got an internal report about a file system not wanting to mount
following 99e3ecfcb9 ("Btrfs: add more validation checks for
superblock").

BTRFS error (device sdb1): super_total_bytes 1000203816960 mismatch with
fs_devices total_rw_bytes 1000203820544

Subtracting the numbers we get a difference of less than a 4kb. Upon
closer inspection it became apparent that mkfs actually rounds down the
size of the device to a multiple of sector size. However, the same
cannot be said for various functions which modify the total size and are
called from btrfs_balance as well as when adding a new device. So this
patch ensures that values being saved into on-disk data structures are
always rounded down to a multiple of sectorsize.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2017-06-20 14:22:48 +02:00
arch mm: larger stack guard gap, between vmas 2017-06-19 21:50:20 +08:00
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Documentation mm: larger stack guard gap, between vmas 2017-06-19 21:50:20 +08:00
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fs btrfs: Round down values which are written for total_bytes_size 2017-06-20 14:22:48 +02:00
include Btrfs: btrfs_ioctl_search_key documentation 2017-06-19 18:26:03 +02:00
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mm mm: larger stack guard gap, between vmas 2017-06-19 21:50:20 +08:00
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Makefile Linux 4.12-rc6 2017-06-19 22:19:37 +08:00
README

README 

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

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.