Brian Behlendorf 11f552fa90 Update arc_available_memory() to check freemem ...

While Linux doesn't provide detailed information about the state of
the VM it does provide us total free pages.  This information should
be incorporated in to the arc_available_memory() calculation rather
than solely relying on a signal from direct reclaim.  Conceptually
this brings arc_available_memory() back in sync with illumos.

It is also desirable that the target amount of free memory be tunable
on a system.  While the default values are expected to work well
for most workloads there may be cases where custom values are needed.
The zfs_arc_sys_free module option was added for this purpose.

zfs_arc_sys_free - The target number of bytes the ARC should leave
                   as free memory on the system.  This value can
                   checked in /proc/spl/kstat/zfs/arcstats and
                   setting this module option will override the
                   default value.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3637

2015-07-30 11:50:22 -07:00

..

arc.c

Update arc_available_memory() to check freemem

2015-07-30 11:50:22 -07:00

blkptr.c

Illumos 4757, 4913

2014-08-01 14:28:05 -07:00

bplist.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

bpobj.c

Illumos 5810 - zdb should print details of bpobj

2015-05-11 15:10:24 -07:00

bptree.c

Illumos 5027 - zfs large block support

2015-05-11 12:23:16 -07:00

dbuf_stats.c

Illumos 5497 - lock contention on arcs_mtx

2015-06-11 10:27:25 -07:00

dbuf.c

Align thread priority with Linux defaults

2015-07-28 13:36:47 -07:00

ddt_zap.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

ddt.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

dmu_diff.c

Illumos 5369 - arc flags should be an enum

2015-06-11 10:27:25 -07:00

dmu_object.c

Illumos 3693 - restore_object uses at least two transactions to restore an object

2014-10-21 15:26:50 -07:00

dmu_objset.c

Align thread priority with Linux defaults

2015-07-28 13:36:47 -07:00

dmu_send.c

Illumos 5946, 5945

2015-07-06 09:31:30 -07:00

dmu_traverse.c

Wait interruptibly in prefetch thread

2015-06-16 16:18:11 -07:00

dmu_tx.c

Illumos 5911 - ZFS "hangs" while deleting file

2015-07-06 09:31:42 -07:00

dmu_zfetch.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

dmu.c

Check for NULL in dmu_free_long_range_impl()

2015-07-28 13:30:53 -07:00

dnode_sync.c

Illumos 5911 - ZFS "hangs" while deleting file

2015-07-06 09:31:42 -07:00

dnode.c

Illumos 5911 - ZFS "hangs" while deleting file

2015-07-06 09:31:42 -07:00

dsl_bookmark.c

Illumos 4951 - ZFS administrative commands should use reserved space

2015-05-04 09:41:10 -07:00

dsl_dataset.c

Illumos 5909 - ensure that shared snap names don't become too long after promotion

2015-07-06 09:21:30 -07:00

dsl_deadlist.c

Illumos 5027 - zfs large block support

2015-05-11 12:23:16 -07:00

dsl_deleg.c

Illumos 4951 - ZFS administrative commands should use reserved space

2015-05-04 09:41:10 -07:00

dsl_destroy.c

Illumos 5027 - zfs large block support

2015-05-11 12:23:16 -07:00

dsl_dir.c

Illumos 4951 - ZFS administrative commands should use reserved space

2015-05-04 09:41:10 -07:00

dsl_pool.c

Align thread priority with Linux defaults

2015-07-28 13:36:47 -07:00

dsl_prop.c

Illumos 4951 - ZFS administrative commands should use reserved space

2015-05-04 09:41:10 -07:00

dsl_scan.c

Illumos 5347 - idle pool may run itself out of space

2015-07-14 10:35:21 -07:00

dsl_synctask.c

Illumos 4951 - ZFS administrative commands should use reserved space

2015-05-04 09:41:10 -07:00

dsl_userhold.c

Illumos 4951 - ZFS administrative commands should use reserved space

2015-05-04 09:41:10 -07:00

fm.c

zfsdev_getminor() should check for invalid file handles

2015-06-22 17:02:13 -07:00

gzip.c

cstyle: Resolve C style issues

2013-12-18 16:46:35 -08:00

lz4.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

lzjb.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

Makefile.in

Support parallel build trees (VPATH builds)

2015-07-17 13:42:51 -07:00

metaslab.c

Align thread priority with Linux defaults

2015-07-28 13:36:47 -07:00

multilist.c

Illumos 5497 - lock contention on arcs_mtx

2015-06-11 10:27:25 -07:00

range_tree.c

Illumos 5163 - arc should reap range_seg_cache

2015-06-25 08:58:16 -07:00

refcount.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

rrwlock.c

Illumos 5008 - lock contention (rrw_exit) while running a read only load

2015-07-06 09:34:13 -07:00

sa.c

Illumos 5562 - ZFS sa_handle's violate kmem invariants, debug kernels panic on boot

2015-05-11 15:10:57 -07:00

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

Use vmem_alloc() in spa_config_write()

2015-04-07 15:10:19 -07:00

spa_errlog.c

Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t

2014-08-06 14:48:41 -07:00

spa_history.c

Illumos 5027 - zfs large block support

2015-05-11 12:23:16 -07:00

spa_misc.c

Update all default taskq settings

2015-06-25 08:58:16 -07:00

spa_stats.c

Illumos 5369 - arc flags should be an enum

2015-06-11 10:27:25 -07:00

spa.c

Align thread priority with Linux defaults

2015-07-28 13:36:47 -07:00

space_map.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

space_reftree.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

trace.c

Illumos 5497 - lock contention on arcs_mtx

2015-06-11 10:27:25 -07:00

txg.c

Align thread priority with Linux defaults

2015-07-28 13:36:47 -07:00

uberblock.c

Illumos 5347 - idle pool may run itself out of space

2015-07-14 10:35:21 -07:00

unique.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

vdev_cache.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

vdev_disk.c

Linux 4.2 compat: remove bio->bi_cnt access

2015-07-17 09:16:08 -07:00

vdev_file.c

Update all default taskq settings

2015-06-25 08:58:16 -07:00

vdev_label.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

vdev_mirror.c

Illumos #5244 - zio pipeline callers should explicitly invoke next stage

2015-04-30 15:07:47 -07:00

vdev_missing.c

Illumos #5244 - zio pipeline callers should explicitly invoke next stage

2015-04-30 15:07:47 -07:00

vdev_queue.c

Illumos 5027 - zfs large block support

2015-05-11 12:23:16 -07:00

vdev_raidz.c

Illumos #5244 - zio pipeline callers should explicitly invoke next stage

2015-04-30 15:07:47 -07:00

vdev_root.c

Illumos #3598

2013-10-31 14:58:04 -07:00

vdev.c

Remove unused variable in vdev_add_child()

2015-06-11 10:22:38 -07:00

zap_leaf.c

Illumos 5314 - Remove "dbuf phys" db->db_data pointer aliases in ZFS

2015-04-28 16:25:20 -07:00

zap_micro.c

Illumos 5027 - zfs large block support

2015-05-11 12:23:16 -07:00

zap.c

Illumos 3654,3656

2015-05-04 09:41:09 -07:00

zfeature_common.c

Illumos 5027 - zfs large block support

2015-05-11 12:23:16 -07:00

zfeature.c

Use cached feature info in spa_add_feature_stats()

2015-03-05 14:11:10 -08:00

zfs_acl.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

zfs_byteswap.c

Add linux kernel module support

2010-08-31 13:41:58 -07:00

zfs_ctldir.c

Align thread priority with Linux defaults

2015-07-28 13:36:47 -07:00

zfs_debug.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

zfs_dir.c

Revert "Revert "Revert "Fix unlink/xattr deadlock"""

2014-08-11 16:12:36 -07:00

zfs_fm.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

zfs_fuid.c

Illumos #3522

2013-10-30 14:51:27 -07:00

zfs_ioctl.c

Failure of userland copy should return EFAULT

2015-07-14 10:20:35 -07:00

zfs_log.c

Illumos 5027 - zfs large block support

2015-05-11 12:23:16 -07:00

zfs_onexit.c

zfsdev_getminor() should check for invalid file handles

2015-06-22 17:02:13 -07:00

zfs_replay.c

Linux AIO Support

2014-09-05 15:11:43 -07:00

zfs_rlock.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

zfs_sa.c

Illumos 5056 - ZFS deadlock on db_mtx and dn_holds

2015-04-28 16:25:34 -07:00

zfs_vfsops.c

Illumos 5008 - lock contention (rrw_exit) while running a read only load

2015-07-06 09:34:13 -07:00

zfs_vnops.c

Fix "BUG: Bad page state" caused by writeback flag

2015-07-29 07:38:15 -07:00

zfs_znode.c

Add logic to try and recover an inode with an invalid mode

2015-07-17 15:33:35 -07:00

zil.c

Align thread priority with Linux defaults

2015-07-28 13:36:47 -07:00

zio_checksum.c

Illumos 4757, 4913

2014-08-01 14:28:05 -07:00

zio_compress.c

Illumos 5661 - ZFS: "compression = on" should use lz4 if feature is enabled

2015-07-10 12:11:45 -07:00

zio_inject.c

Illumos 5497 - lock contention on arcs_mtx

2015-06-11 10:27:25 -07:00

zio.c

Illumos 5369 - arc flags should be an enum

2015-06-11 10:27:25 -07:00

zle.c

Update core ZFS code from build 121 to build 141.

2010-05-28 13:45:14 -07:00

zpl_ctldir.c

Mark additional functions as PF_FSTRANS

2015-04-17 09:35:24 -07:00

zpl_export.c

Return -ESTALE to force lookup for missing NFS file handles

2015-05-14 11:16:52 -07:00

zpl_file.c

Linux 4.1 compat: use read_iter() / write_iter()

2015-06-18 12:06:59 -07:00

zpl_inode.c

Linux 4.2 compat: follow_link() / put_link()

2015-07-17 09:18:16 -07:00

zpl_super.c

Extend PF_FSTRANS critical regions

2015-04-24 09:54:22 -07:00

zpl_xattr.c

Mark additional functions as PF_FSTRANS

2015-04-17 09:35:24 -07:00

zrlock.c

Illumos 5812 - assertion failed in zrl_tryenter(): zr_owner==NULL

2015-04-30 14:43:40 -07:00

zvol.c

Bound zvol_threads module option

2015-07-29 07:42:11 -07:00