diff options
Diffstat (limited to 'fs/fs-writeback.c')
| -rw-r--r-- | fs/fs-writeback.c | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 3cd99e2dc6ac..cc57367fb641 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -65,7 +65,7 @@ struct wb_writeback_work { * timestamps written to disk after 12 hours, but in the worst case a * few inodes might not their timestamps updated for 24 hours. */ -unsigned int dirtytime_expire_interval = 12 * 60 * 60; +static unsigned int dirtytime_expire_interval = 12 * 60 * 60; static inline struct inode *wb_inode(struct list_head *head) { @@ -2435,14 +2435,7 @@ static void wakeup_dirtytime_writeback(struct work_struct *w) schedule_delayed_work(&dirtytime_work, dirtytime_expire_interval * HZ); } -static int __init start_dirtytime_writeback(void) -{ - schedule_delayed_work(&dirtytime_work, dirtytime_expire_interval * HZ); - return 0; -} -__initcall(start_dirtytime_writeback); - -int dirtytime_interval_handler(const struct ctl_table *table, int write, +static int dirtytime_interval_handler(const struct ctl_table *table, int write, void *buffer, size_t *lenp, loff_t *ppos) { int ret; @@ -2453,6 +2446,25 @@ int dirtytime_interval_handler(const struct ctl_table *table, int write, return ret; } +static const struct ctl_table vm_fs_writeback_table[] = { + { + .procname = "dirtytime_expire_seconds", + .data = &dirtytime_expire_interval, + .maxlen = sizeof(dirtytime_expire_interval), + .mode = 0644, + .proc_handler = dirtytime_interval_handler, + .extra1 = SYSCTL_ZERO, + }, +}; + +static int __init start_dirtytime_writeback(void) +{ + schedule_delayed_work(&dirtytime_work, dirtytime_expire_interval * HZ); + register_sysctl_init("vm", vm_fs_writeback_table); + return 0; +} +__initcall(start_dirtytime_writeback); + /** * __mark_inode_dirty - internal function to mark an inode dirty * |