diff options
| author | Luis Chamberlain <mcgrof@kernel.org> | 2022-04-15 15:08:02 -0700 |
|---|---|---|
| committer | Luis Chamberlain <mcgrof@kernel.org> | 2022-04-21 11:40:59 -0700 |
| commit | 3c6a4cba3138d1aeeb8fd917178c6578b9b8ae29 (patch) | |
| tree | 7c1e20b45da8a27e770473fd7ecbe93f49e6c669 /mm/page-writeback.c | |
| parent | 988f11e046401f8561c4afefa506a50f0203de40 (diff) | |
| download | linux-3c6a4cba3138d1aeeb8fd917178c6578b9b8ae29.tar.gz | |
mm: fix unused variable kernel warning when SYSCTL=n
When CONFIG_SYSCTL=n the variable dirty_bytes_min which is just used
as a minimum to a proc handler is not used. So just move this under
the ifdef for CONFIG_SYSCTL.
Fixes: aa779e510219 ("mm: move page-writeback sysctls to their own file")
Reported-by: kernel test robot <lkp@intel.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 438762173a59..4f51d0ac5043 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -89,9 +89,6 @@ static int vm_highmem_is_dirtyable; */ static int vm_dirty_ratio = 20; -/* this is needed for the proc_doulongvec_minmax of vm_dirty_bytes */ -static const unsigned long dirty_bytes_min = 2 * PAGE_SIZE; - /* * vm_dirty_bytes starts at 0 (disabled) so that it is a function of * vm_dirty_ratio * the amount of dirtyable memory @@ -2077,6 +2074,10 @@ static int page_writeback_cpu_online(unsigned int cpu) } #ifdef CONFIG_SYSCTL + +/* this is needed for the proc_doulongvec_minmax of vm_dirty_bytes */ +static const unsigned long dirty_bytes_min = 2 * PAGE_SIZE; + static struct ctl_table vm_page_writeback_sysctls[] = { { .procname = "dirty_background_ratio", |