tree 44adcefcc2177267437826b800800021cc2f4faf
parent 293f7e07405a63975cee4e95a2cfa0c17b34b3aa
author Li Zefan <lizefan@huawei.com> 1341886955 -0600
committer Chris Mason <chris.mason@fusionio.com> 1343075286 -0400

Btrfs: rewrite BTRFS_SETGET_FUNCS

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 <lizefan@huawei.com>