The patch titled
Subject: fs/proc/internal.h: shuffle "struct pde_opener"
has been added to the -mm tree. Its filename is
proc-shuffle-struct-pde_opener.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/proc-shuffle-struct-pde_opener.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/proc-shuffle-struct-pde_opener.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Subject: fs/proc/internal.h: shuffle "struct pde_opener"
List iteration takes more code than anything else which means embedded
list_head should be the first element of the structure.
Space savings:
add/remove: 0/0 grow/shrink: 0/4 up/down: 0/-18 (-18)
Function old new delta
close_pdeo 228 227 -1
proc_reg_release 86 82 -4
proc_entry_rundown 143 139 -4
proc_reg_open 298 289 -9
Link: http://lkml.kernel.org/r/20191004234753.GB30246@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/internal.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/proc/internal.h~proc-shuffle-struct-pde_opener
+++ a/fs/proc/internal.h
@@ -197,8 +197,8 @@ extern ssize_t proc_simple_write(struct
* inode.c
*/
struct pde_opener {
- struct file *file;
struct list_head lh;
+ struct file *file;
bool closing;
struct completion *c;
} __randomize_layout;
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxx are
ramfs-support-o_tmpfile.patch
proc-change-nlink-under-proc_subdir_lock.patch
proc-delete-useless-len-variable.patch
proc-shuffle-struct-pde_opener.patch
elf-delete-unused-interp_map_addr-argument.patch
elf-extract-elf_read-function.patch
