linux.git/fs/btrfs/struct-funcs.c, branch v5.3

btrfs: prune unused includes

2018-08-06T11:12:43+00:00

Remove includes if none of the interfaces and exports is used in the
given source file.

Signed-off-by: David Sterba

btrfs: replace GPL boilerplate by SPDX -- sources

2018-04-12T14:29:51+00:00

Remove GPL boilerplate text (long, short, one-line) and keep the rest,
ie. personal, company or original source copyright statements. Add the
SPDX header.

Signed-off-by: David Sterba

btrfs: struct-funcs, constify readers

2017-08-16T12:19:53+00:00

We have reader helpers for most of the on-disk structures that use
an extent_buffer and pointer as offset into the buffer that are
read-only.  We should mark them as const and, in turn, allow consumers
of these interfaces to mark the buffers const as well.

No impact on code, but serves as documentation that a buffer is intended
not to be modified.

Signed-off-by: Jeff Mahoney 
Signed-off-by: David Sterba

btrfs: fix string and comment grammatical issues and typos

2016-05-25T20:35:14+00:00

Signed-off-by: Nicholas D Steeves 
Signed-off-by: David Sterba

mm, fs: remove remaining PAGE_CACHE_* and page_cache_{get,release} usage

2016-04-04T17:41:08+00:00

Mostly direct substitution with occasional adjustment or removing
outdated comments.

Signed-off-by: Kirill A. Shutemov 
Acked-by: Michal Hocko 
Signed-off-by: Linus Torvalds

Btrfs: rewrite BTRFS_SETGET_FUNCS

2012-07-23T20:28:06+00:00

BTRFS_SETGET_FUNCS macro is used to generate btrfs_set_foo() and
btrfs_foo() functions, which read and write specific fields in the
extent buffer.

The total number of set/get functions is ~200, but in fact we only
need 8 functions: 2 for u8 field, 2 for u16, 2 for u32 and 2 for u64.

It results in redunction of ~37K bytes.

   text    data     bss     dec     hex filename
 629661   12489     216  642366   9cd3e fs/btrfs/btrfs.o.orig
 592637   12489     216  605342   93c9e fs/btrfs/btrfs.o

Signed-off-by: Li Zefan

Btrfs: add the ability to cache a pointer into the eb

2012-03-26T21:04:23+00:00

This cuts down on the CPU time used by map_private_extent_buffer

Signed-off-by: Chris Mason

Btrfs: stop using highmem for extent_buffers

2011-07-27T16:46:45+00:00

The extent_buffers have a very complex interface where
we use HIGHMEM for metadata and try to cache a kmap mapping
to access the memory.

The next commit adds reader/writer locks, and concurrent use
of this kmap cache would make it even more complex.

This commit drops the ability to use HIGHMEM with extent buffers,
and rips out all of the related code.

Signed-off-by: Chris Mason

Btrfs: Fix checkpatch.pl warnings

2009-01-06T02:25:51+00:00

There were many, most are fixed now.  struct-funcs.c generates some warnings
but these are bogus.

Signed-off-by: Chris Mason

Btrfs: Fix sparse endian warnings in struct-funcs.c

2008-12-02T16:18:37+00:00

The btrfs macros to access individual struct members on disk were
sending the same variable to functions that expected different types
of endianness.  This fix explicitly creates a variable of the correct
type instead of abusing a single variable for mixed purposes.

Signed-off-by: Chris Mason