ext4: isolate ext4_extents.h file
authorZheng Liu <wenqing.lz@taobao.com>
Wed, 28 Aug 2013 18:47:06 +0000 (14:47 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Wed, 28 Aug 2013 18:47:06 +0000 (14:47 -0400)
commitd7b2a00c2e2eedf460ce2a15237f28de40412d86
tree5a6b062e0973a84cab9b66f75a7a573361ccdf69
parent70261f568f3c08552f034742e3d5cb78c3877766
ext4: isolate ext4_extents.h file

After applied the commit (4a092d73), we have reduced the number of
source files that need to #include ext4_extents.h.  But we can do
better.

This commit defines ext4_zeroout_es() in extents.c and move
EXT_MAX_BLOCKS into ext4.h in order not to include ext4_extents.h in
indirect.c and ioctl.c.  Meanwhile we just need to include this file in
extent_status.c when ES_AGGRESSIVE_TEST is defined.  Otherwise, this
commit removes a duplicated declaration in trace/events/ext4.h.

After applied this patch, we just need to include ext4_extents.h file
in {super,migrate,move_extents,extents}.c, and it is easy for us to
define a new extent disk layout.

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
fs/ext4/ext4.h
fs/ext4/ext4_extents.h
fs/ext4/extents.c
fs/ext4/extents_status.c
fs/ext4/extents_status.h
fs/ext4/indirect.c
fs/ext4/ioctl.c
include/trace/events/ext4.h