Christian Brauner a4db63b88f Merge patch series "fs: fully sync all fsese even for an emergency sync"
Qu Wenruo <wqu@suse.com> says:

The first patch is a cleanup related to sync_inodes_one_sb() callback.
Since it always wait for the writeback, there is no need to pass any
parameter for it.

The second patch is a fix mostly affecting btrfs, as btrfs requires a
explicit sync_fc() call with wait == 1, to commit its super blocks,
and sync_bdevs() won't cut it at all.

However the current emergency sync never passes wait == 1, it means
btrfs will writeback all dirty data and metadata, but still no super
block update, resulting everything still pointing back to the old
data/metadata.

This lead to a problem where btrfs doesn't seem to do anything during
emergency sync.

The second patch fixes the problem by passing wait == 1 for the second
iteration of sync_fs_one_sb().

* patches from https://patch.msgid.link/cover.1762142636.git.wqu@suse.com:
  fs: fully sync all fses even for an emergency sync
  fs: do not pass a parameter for sync_inodes_one_sb()

Link: https://patch.msgid.link/cover.1762142636.git.wqu@suse.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-11-05 12:30:05 +01:00
2025-02-19 14:53:27 -07:00
2025-10-12 13:42:36 -07:00
2024-03-18 03:36:32 -06:00

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

There are several guides for kernel developers and users. These guides can
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In order to build the documentation, use ``make htmldocs`` or
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    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.
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