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| author | Theodore Ts'o <tytso@mit.edu> | 2015-03-17 17:23:32 +0100 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2015-03-17 17:23:32 +0100 |
| commit | 1efff914afac8a965ad63817ecf8861a927c2ace (patch) | |
| tree | d7b582a4811e957a7dc6abd26629694276e19e2d /fs/fs-writeback.c | |
| parent | fs: make sure the timestamps for lazytime inodes eventually get written (diff) | |
| download | linux-1efff914afac8a965ad63817ecf8861a927c2ace.tar.xz linux-1efff914afac8a965ad63817ecf8861a927c2ace.zip | |
fs: add dirtytime_expire_seconds sysctl
Add a tuning knob so we can adjust the dirtytime expiration timeout,
which is very useful for testing lazytime.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/fs-writeback.c')
| -rw-r--r-- | fs/fs-writeback.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 2cfcd74faf87..32a8bbd7a9ad 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -1188,6 +1188,17 @@ static int __init start_dirtytime_writeback(void) } __initcall(start_dirtytime_writeback); +int dirtytime_interval_handler(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, loff_t *ppos) +{ + int ret; + + ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos); + if (ret == 0 && write) + mod_delayed_work(system_wq, &dirtytime_work, 0); + return ret; +} + static noinline void block_dump___mark_inode_dirty(struct inode *inode) { if (inode->i_ino || strcmp(inode->i_sb->s_id, "bdev")) { |