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fdcd952b4d
mirror_zfs/module/zfs
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Brian Behlendorf fdcd952b4d Fix set block scheduler warnings 
There were two cases when attempting to set the vdev block device
scheduler which would causes console warnings.

The first case was when the vdev used a loop, ram, dm, or other
such device which doesn't support a configurable scheduler.  In
these cases attempting to set a scheduler is pointless and can
be safely skipped.

The secord case is slightly more troubling.  We were seeing
transient cases where setting the elevator would return -EFAULT.
On retry everything is fine so there appears to be a small window
where this is possible.  To handle that case we silently retry
up to three times before reporting the warning.

In all of the above cases the warning is harmless and at worse you
may see slightly different performance characteristics from one
or more of your vdevs.
2011-02-25 11:37:11 -08:00
..
arc.c Use cv_timedwait_interruptible in arc 2010-12-14 10:06:44 -08:00
bplist.c Fix gcc missing parenthesis warnings 2010-08-31 08:38:35 -07:00
bpobj.c Update to onnv_147 2010-08-26 14:24:34 -07:00
dbuf.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
ddt_zap.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
ddt.c Add linux kernel memory support 2010-08-31 13:41:57 -07:00
dmu_diff.c Update to onnv_147 2010-08-26 14:24:34 -07:00
dmu_object.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
dmu_objset.c Merge branch 'zpl' 2011-02-18 09:31:25 -08:00
dmu_send.c Add linux kernel memory support 2010-08-31 13:41:57 -07:00
dmu_traverse.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
dmu_tx.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
dmu_zfetch.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
dmu.c Suppress large kmem_alloc() warning 2011-02-10 09:27:22 -08:00
dnode_sync.c Fix dbuf eviction assertion 2010-08-31 08:38:45 -07:00
dnode.c Quiet down very frequent large allocation warning in ZFS. 2010-09-17 16:24:15 -07:00
dsl_dataset.c Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
dsl_deadlist.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
dsl_deleg.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
dsl_dir.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
dsl_pool.c Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
dsl_prop.c Fix enum compiler warning 2011-02-23 12:52:51 -08:00
dsl_scan.c Suppress large kmem_alloc() warning. 2010-10-12 14:54:59 -07:00
dsl_synctask.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
fm.c Fix missing 'zpool events' 2010-10-12 14:55:03 -07:00
gzip.c Fix zmod.h usage in userspace 2010-08-31 08:38:46 -07:00
lzjb.c Fix stack lzjb 2010-08-31 08:38:49 -07:00
Makefile.in Add Hooks for Linux File Operations 2011-02-10 09:27:21 -08:00
metaslab.c Fix metaslab 2010-08-31 08:38:45 -07:00
refcount.c Fix gcc uninitialized variable warnings 2010-08-31 08:38:43 -07:00
rrwlock.c Enable rrwlock.c compilation 2010-12-07 16:05:25 -08:00
sa.c Enable zfs_znode compilation 2011-02-10 09:27:20 -08:00
sha256.c Add linux sha2 support 2010-08-31 13:41:59 -07:00
spa_boot.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa_config.c Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
spa_errlog.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa_history.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa_misc.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa.c Increate zio write interrupt thread count. 2010-11-08 14:03:35 -08:00
space_map.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
txg.c Add API to wait for pending commit callbacks 2011-02-16 11:20:06 -08:00
uberblock.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
unique.c Fix gcc ident pragma warnings 2010-08-27 15:34:02 -07:00
vdev_cache.c Fix stack vdev_cache_read() 2010-08-31 08:38:49 -07:00
vdev_disk.c Fix set block scheduler warnings 2011-02-25 11:37:11 -08:00
vdev_file.c Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
vdev_label.c Fix gcc uninitialized variable warnings 2010-08-31 08:38:43 -07:00
vdev_mirror.c Fix gcc c90 compliance warnings 2010-08-27 15:28:32 -07:00
vdev_missing.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
vdev_queue.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
vdev_raidz.c Fix variables named current 2010-08-31 08:38:44 -07:00
vdev_root.c Fix gcc c90 compliance warnings 2010-08-27 15:28:32 -07:00
vdev.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
zap_leaf.c Fix gcc uninitialized variable warnings 2010-08-31 08:38:43 -07:00
zap_micro.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
zap.c Fix rw_init() usage 2010-08-31 08:38:46 -07:00
zfs_acl.c Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
zfs_byteswap.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
zfs_debug.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zfs_dir.c Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
zfs_fm.c Initial zio delay timing 2010-10-12 14:55:02 -07:00
zfs_fuid.c Use provided uid/gid for setattr 2011-02-17 14:23:48 -08:00
zfs_ioctl.c Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
zfs_log.c Wrap with HAVE_XVATTR 2011-02-10 09:27:21 -08:00
zfs_onexit.c Add linux kernel device support 2010-08-31 13:41:50 -07:00
zfs_replay.c Wrap with HAVE_XVATTR 2011-02-10 09:27:21 -08:00
zfs_rlock.c Move cv_destroy() outside zp->z_range_lock() 2011-02-10 09:27:21 -08:00
zfs_sa.c Prototype/structure update for Linux 2011-02-10 09:27:21 -08:00
zfs_vfsops.c Increase fragment size to block size 2011-02-23 14:00:06 -08:00
zfs_vnops.c Use correct ASSERT3* variant 2011-02-23 15:03:30 -08:00
zfs_znode.c Remove rdev packing 2011-02-23 15:13:03 -08:00
zil.c Add linux kernel memory support 2010-08-31 13:41:57 -07:00
zio_checksum.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zio_compress.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zio_inject.c Update to onnv_147 2010-08-26 14:24:34 -07:00
zio.c Shorten zio_* thread names 2010-11-08 14:03:35 -08:00
zle.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zpl_file.c Linux 2.6.35 compat, fops->fsync() 2011-02-11 09:05:51 -08:00
zpl_inode.c Use -zfs_readlink() error 2011-02-17 09:48:06 -08:00
zpl_super.c Linux 2.6.36 compat, sops->evict_inode() 2011-02-11 13:47:51 -08:00
zpl_xattr.c Linux 2.6.33 compat, get/set xattr callbacks 2011-02-11 10:41:00 -08:00
zrlock.c Export ZFS symbols needed by Lustre. 2010-09-17 16:24:15 -07:00
zvol.c Use udev to create /dev/zvol/[dataset_name] links 2011-02-25 09:43:19 -08:00