[LU-881] shmem_bump() notes "running" bumped without lock control

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.2.0
• Affects Version/s: Lustre 1.8.x (1.8.0 - 1.8.5)
• Environment: all
• Severity: 3
• Assignee: Robert Read (Inactive)
• Reporter: Bruce Korb (Inactive)

Description

This code allows "running" to be bumped once for each
thread that enters "lock()" before "bumped_running"
gets set to 1. This has been simplified from code in obd.c:

static int bumped_running;
lock();
if (!bumped_running)
running++;
unlock();
bumped_running = 1;

Issue Links

• Trackbacks: Lustre 1.8.x known issues tracker While testing against Lustre b18 branch, we would hit known bugs which were already reported in Lustre Bugzilla https://bugzilla.lustre.org/. In order to move away from relying on Bugzilla, we would create a JIRA
• Trackbacks: Changelog 2.2 version 2.2.0 Support for networks: o2iblnd OFED 1.5.4 Server support for kernels: 2.6.32220.4.2.el6 (RHEL6) Client support for unpatched kernels: 2.6.18274.18.1.el5 (RHEL5) 2.6.32220.4.2.el6 (RHEL6) 2.6.32.360....