[sanlock] 01/09: config: Add max_worker_threads

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teigland pushed a commit to branch rhel83
in repository sanlock.

commit ddb973d566b409064db18debede04f7c3a8fd089
Author: Nir Soffer <nsoffer(a)redhat.com&gt;
AuthorDate: Mon Nov 30 15:02:33 2020 -0600

    config: Add max_worker_threads
    
    Concurrent async add_lockspace calls are limited by the number of worker
    threads. Using larger number of worker threads shorten the time to add
    many locksapces in large setups.
    
    Previously this value could be modified only via the command line. Now
    it can be modified via the sanlock configuration file for easier
    deployment.
    
    Buglink: https://bugzilla.redhat.com/1902468
    Signed-off-by: Nir Soffer <nsoffer(a)redhat.com&gt;
---
 src/main.c       | 7 +++++++
 src/sanlock.8    | 5 +++++
 src/sanlock.conf | 3 +++
 3 files changed, 15 insertions(+)

diff --git a/src/main.c b/src/main.c
index e2901f3..63d8cff 100644
--- a/src/main.c
+++ b/src/main.c
@@ -2877,6 +2877,13 @@ static void read_config_file(void)
 			} else {
 				log_error("ignore unknown max_sectors_kb %s", str);
 			}
+
+		} else if (!strcmp(str, "max_worker_threads")) {
+			get_val_int(line, &val);
+			if (val < DEFAULT_MIN_WORKER_THREADS)
+				val = DEFAULT_MIN_WORKER_THREADS;
+			com.max_worker_threads = val;
+
 		}
 	}
 
diff --git a/src/sanlock.8 b/src/sanlock.8
index d77f24c..9611b47 100644
--- a/src/sanlock.8
+++ b/src/sanlock.8
@@ -1372,6 +1372,11 @@ The io timeout to use when initializing ondisk lease structures
 for a lockspace or resource.  This timeout is not used as a part
 of either lease algorithm (as the standard io_timeout is.)
 
+.IP \[bu] 2
+max_worker_threads = <num>
+.br
+See -t
+
 .SH SEE ALSO
 .BR wdmd (8)
 
diff --git a/src/sanlock.conf b/src/sanlock.conf
index 9b78e5c..2909a9c 100644
--- a/src/sanlock.conf
+++ b/src/sanlock.conf
@@ -66,3 +66,6 @@
 #
 # write_init_io_timeout = <seconds>
 # command line: n/a
+#
+# max_worker_threads = 8
+# command line: -t 8

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