Qu Wenruo 280f15cb96 btrfs: remove new_inline argument from btrfs_extent_item_to_extent_map()
The argument @new_inline changes the following members of extent_map:

- em->compress_type
- EXTENT_FLAG_COMPRESSED of em->flags

However neither members makes a difference for inline extents:

- Inline extent read never use above em members

  As inside btrfs_get_extent() we directly use the file extent item to
  do the read.

- Inline extents are never to be split

  Thus code really needs em->compress_type or that flag will never be
  executed on inlined extents.
  (btrfs_drop_extent_cache() would be one example)

- Fiemap no longer relies on extent maps

  Recent fiemap optimization makes fiemap to search subvolume tree
  directly, without using any extent map at all.

  Thus those members make no difference for inline extents any more.

Furthermore such exception without much explanation is really a source
of confusion.

Thus this patch will completely remove the argument, and always set the
involved members, unifying the behavior.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2022-12-05 18:00:48 +01:00
2022-12-04 12:24:58 -08:00
2022-11-25 17:50:57 -08:00
2022-09-28 09:02:20 +02:00
2022-10-12 14:46:48 -07:00
2022-10-31 12:09:42 -07:00
2022-11-30 17:26:55 +01:00
2022-09-28 09:02:20 +02:00
2022-09-28 09:02:20 +02:00
2022-10-10 12:00:45 -07:00
2022-12-04 14:48:12 -08:00

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.
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