memory: remove the now superfluous sentinel element from ctl_table array

This commit comes at the tail end of a greater effort to remove the empty
elements at the end of the ctl_table arrays (sentinels) which will reduce
the overall build time size of the kernel and run time memory bloat by ~64
bytes per sentinel (further information Link :
https://lore.kernel.org/all/ZO5Yx5JFogGi%2FcBo@bombadil.infradead.org/)

Remove sentinel from all files under mm/ that register a sysctl table.

Link: https://lkml.kernel.org/r/20240328-jag-sysctl_remset_misc-v1-1-47c1463b3af2@samsung.com
Signed-off-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/compaction.c b/mm/compaction.c
index 70b0119..e731d45 100644 (file)
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -3350,7 +3350,6 @@ static struct ctl_table vm_compaction[] = {
                .extra1         = SYSCTL_ZERO,
                .extra2         = SYSCTL_ONE,
        },
-       { }
 };
 
 static int __init kcompactd_init(void)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 8af2fd4..10b4f8b 100644 (file)
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -5029,7 +5029,6 @@ static struct ctl_table hugetlb_table[] = {
                .mode           = 0644,
                .proc_handler   = hugetlb_overcommit_handler,
        },
-       { }
 };
 
 static void hugetlb_sysctl_init(void)

diff --git a/mm/hugetlb_vmemmap.c b/mm/hugetlb_vmemmap.c
index da177e4..b9a5532 100644 (file)
--- a/mm/hugetlb_vmemmap.c
+++ b/mm/hugetlb_vmemmap.c
@@ -679,7 +679,6 @@ static struct ctl_table hugetlb_vmemmap_sysctls[] = {
                .mode           = 0644,
                .proc_handler   = proc_dobool,
        },
-       { }
 };
 
 static int __init hugetlb_vmemmap_init(void)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 0d863e9..4f22330 100644 (file)
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -141,7 +141,6 @@ static struct ctl_table memory_failure_table[] = {
                .extra1         = SYSCTL_ZERO,
                .extra2         = SYSCTL_ONE,
        },
-       { }
 };
 
 /*

diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 8d6a207..4d7a000 100644 (file)
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -724,7 +724,6 @@ static struct ctl_table vm_oom_kill_table[] = {
                .mode           = 0644,
                .proc_handler   = proc_dointvec,
        },
-       {}
 };
 #endif
 

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 3e19b87..fba324e 100644 (file)
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2291,7 +2291,6 @@ static struct ctl_table vm_page_writeback_sysctls[] = {
                .mode           = 0644,
                .proc_handler   = proc_dointvec_jiffies,
        },
-       {}
 };
 #endif
 

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e030ccf..07c2177 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6288,7 +6288,6 @@ static struct ctl_table page_alloc_sysctl_table[] = {
                .extra2         = SYSCTL_ONE_HUNDRED,
        },
 #endif
-       {}
 };
 
 void __init page_alloc_sysctl_init(void)