diff options
| author |   David Teigland <teigland@redhat.com> | 2007-01-25 14:24:04 -0600 |
|---|---|---|
| committer |   Steven Whitehouse <swhiteho@redhat.com> | 2007-02-05 13:38:01 -0500 |
| commit | ee32e4f3d347e4b562de0bd70be99e622d7d1a9f (patch) | |
| tree | ba927adf561f1c5af229552962ec5c32472a1ffe /fs/gfs2/locking/dlm/sysfs.c | |
| parent | [GFS2] increase default lock limit (diff) | |
| download | linux-dev-ee32e4f3d347e4b562de0bd70be99e622d7d1a9f.tar.xz linux-dev-ee32e4f3d347e4b562de0bd70be99e622d7d1a9f.zip | |
[GFS2] make lock_dlm drop_count tunable in sysfs
We want to be able to change or disable the default drop_count (number at
which the dlm asks gfs to limit the the number of locks it's holding).
Add it to the collection of sysfs tunables for an fs.
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/gfs2/locking/dlm/sysfs.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/gfs2/locking/dlm/sysfs.c b/fs/gfs2/locking/dlm/sysfs.c index 29ae06f94944..4746b884662d 100644 --- a/fs/gfs2/locking/dlm/sysfs.c +++ b/fs/gfs2/locking/dlm/sysfs.c @@ -116,6 +116,17 @@ static ssize_t recover_status_show(struct gdlm_ls *ls, char *buf) return sprintf(buf, "%d\n", ls->recover_jid_status); } +static ssize_t drop_count_show(struct gdlm_ls *ls, char *buf) +{ + return sprintf(buf, "%d\n", ls->drop_locks_count); +} + +static ssize_t drop_count_store(struct gdlm_ls *ls, const char *buf, size_t len) +{ + ls->drop_locks_count = simple_strtol(buf, NULL, 0); + return len; +} + struct gdlm_attr { struct attribute attr; ssize_t (*show)(struct gdlm_ls *, char *); @@ -135,6 +146,7 @@ GDLM_ATTR(first_done, 0444, first_done_show, NULL); GDLM_ATTR(recover, 0644, recover_show, recover_store); GDLM_ATTR(recover_done, 0444, recover_done_show, NULL); GDLM_ATTR(recover_status, 0444, recover_status_show, NULL); +GDLM_ATTR(drop_count, 0644, drop_count_show, drop_count_store); static struct attribute *gdlm_attrs[] = { &gdlm_attr_proto_name.attr, @@ -147,6 +159,7 @@ static struct attribute *gdlm_attrs[] = { &gdlm_attr_recover.attr, &gdlm_attr_recover_done.attr, &gdlm_attr_recover_status.attr, + &gdlm_attr_drop_count.attr, NULL, }; |