diff options
Diffstat (limited to 'mm/swap.c')
| -rw-r--r-- | mm/swap.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/mm/swap.c b/mm/swap.c index fc8281ef4241..b81cce146eb2 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -45,7 +45,7 @@ /* How many pages do we try to swap or page in/out together? As a power of 2 */ int page_cluster; -const int page_cluster_max = 31; +static const int page_cluster_max = 31; struct cpu_fbatches { /* @@ -1076,6 +1076,18 @@ void folio_batch_remove_exceptionals(struct folio_batch *fbatch) fbatch->nr = j; } +static const struct ctl_table swap_sysctl_table[] = { + { + .procname = "page-cluster", + .data = &page_cluster, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = (void *)&page_cluster_max, + } +}; + /* * Perform any setup for the swap system */ @@ -1092,4 +1104,6 @@ void __init swap_setup(void) * Right now other parts of the system means that we * _really_ don't want to cluster much more */ + + register_sysctl_init("vm", swap_sysctl_table); } |