[RFC PATCH 3/9] module: Place MOD_TEXT before MOD_INIT_TEXT in enumeration

[Ard Biesheuvel <ardb+git@google.com>]

From: Ard Biesheuvel <ardb@kernel.org>

Reorder enum mod_mem_type so that MOD_TEXT appears right before
MOD_INIT_TEXT. This will result in MOD_INIT_TEXT being allocated right
after MOD_TEXT when the allocation logic iterates over the memory types
in enum declaration order.

In a subsequent patch, this will be taken advantage of, by allocating
.text and .init.text together, and freeing .init.text by truncating the
allocation. Doing so without this reordering would likely result in more
fragmentation, as the truncated .text allocation would be followed by
.rodata and .data/.bss of the same module.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
 include/linux/module.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/module.h b/include/linux/module.h
index 7566815fabbe..0336a46733dd 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -316,10 +316,10 @@ struct mod_tree_node {
 };
 
 enum mod_mem_type {
-	MOD_TEXT = 0,
-	MOD_DATA,
+	MOD_DATA = 0,
 	MOD_RODATA,
 	MOD_RO_AFTER_INIT,
+	MOD_TEXT,
 	MOD_INIT_TEXT,
 	MOD_INIT_DATA,
 	MOD_INIT_RODATA,
-- 
2.55.0.860.g4b6b3295ed-goog