mirror_zfs/cmd
Chris Dunlap 518eba1492 Replace check for _POSIX_MEMLOCK w/ HAVE_MLOCKALL
zed supports a '-M' cmdline opt to lock all pages in memory via
mlockall().  The _POSIX_MEMLOCK define is checked to determine whether
this function is supported.  The current test assumes mlockall()
is supported if _POSIX_MEMLOCK is non-zero.  However, this test is
insufficient according to mlock(2) and sysconf(3).  If _POSIX_MEMLOCK
is -1, mlockall() is not supported; but if _POSIX_MEMLOCK is 0,
availability must be checked at runtime.

This commit adds an autoconf check for mlockall() to user.m4.  The zed
code block for mlockall() is now guarded with a test for HAVE_MLOCKALL.
If defined, mlockall() will be called and its runtime availability
checked via its return value.

Signed-off-by: Chris Dunlap <cdunlap@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #2
2014-04-02 13:10:08 -07:00
..
arcstat sighandler() should take 2 arguments 2014-03-20 11:03:46 -07:00
dbufstat Python 3 fixes 2013-11-08 14:30:29 -08:00
fsck_zfs Add /sbin/fsck.zfs helper 2013-01-09 16:54:58 -08:00
mount_zfs Add full SELinux support 2013-12-19 10:37:31 -08:00
vdev_id vdev_id: support per-channel slot mappings 2014-01-17 11:17:54 -08:00
zdb cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zed Replace check for _POSIX_MEMLOCK w/ HAVE_MLOCKALL 2014-04-02 13:10:08 -07:00
zfs Enable /etc/mtab cache to improve performance 2014-01-07 09:48:09 -08:00
zhack Add missing libzfs_core to Makefiles 2013-11-20 15:44:15 -08:00
zinject Make command line guid parsing more tolerant 2014-04-02 13:10:08 -07:00
zpios Fix error message in zpios 2014-01-29 15:11:56 -08:00
zpool Add missing DATA_TYPE_STRING_ARRAY output 2014-04-02 13:10:08 -07:00
zstreamdump Add missing libzfs_core to Makefiles 2013-11-20 15:44:15 -08:00
ztest Switch ztest mmap(2) ASSERTs to VERIFYs 2014-03-12 09:05:00 -07:00
zvol_id cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
Makefile.am Initial implementation of zed (ZFS Event Daemon) 2014-04-02 13:10:03 -07:00