Brian Behlendorf 218b4e0a76 Add zfs_sb_prune_aliases() function ...

For kernels which do not implement a per-suberblock shrinker,
those older than Linux 3.1, the shrink_dcache_parent() function
was used to attempt to reclaim dentries.  This was found not be
entirely reliable and could lead to performance issues on older
kernels running meta-data heavy workloads.

To address this issue a zfs_sb_prune_aliases() function has been
added to implement this functionality.  It relies on traversing
the list of znodes for a filesystem and adding them to a private
list with a reference held.  The private list can then be safely
walked outside the z_znodes_lock to prune dentires and drop the
last reference so the inode can be freed.

This provides the same synchronous behavior as the per-filesystem
shrinker and has the advantage of depending on only long standing
interfaces.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tim Chase <tim@chase2k.com>
Closes #3501

2015-06-22 10:22:49 -07:00

..

arc.c

Rename cv_wait_interruptible() to cv_wait_sig()

2015-06-11 10:50:47 -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

Illumos 5369 - arc flags should be an enum

2015-06-11 10:27:25 -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

Illumos 5369 - arc flags should be an enum

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

dmu_send.c

Illumos 5369 - arc flags should be an enum

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

dmu_traverse.c

Wait interruptibly in prefetch thread

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

dmu_tx.c

Illumos 5027 - zfs large block support

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

dmu_zfetch.c

Change KM_PUSHPAGE -> KM_SLEEP

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

dmu.c

Illumos 5820 - verify failed in zio_done(): BP_EQUAL(bp, io_bp_orig)

2015-05-04 10:49:49 -07:00

dnode_sync.c

Illumos 5350 - clean up code in dnode_sync()

2015-05-11 15:09:51 -07:00

dnode.c

Illumos 5422 - preserve AVL invariants in dn_dbufs

2015-05-11 15:09:29 -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 5393 - spurious failures from dsl_dataset_hold_obj()

2015-05-13 08:56:04 -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

Increase the number of iput taskq threads

2015-06-22 10:22:10 -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 5369 - arc flags should be an enum

2015-06-11 10:27:25 -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

Rename cv_wait_interruptible() to cv_wait_sig()

2015-06-11 10:50:47 -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

Illumos 5497 - lock contention on arcs_mtx

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

metaslab.c

Use taskq_wait_outstanding() function

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

multilist.c

Illumos 5497 - lock contention on arcs_mtx

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

range_tree.c

Change KM_PUSHPAGE -> KM_SLEEP

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

refcount.c

Change KM_PUSHPAGE -> KM_SLEEP

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

rrwlock.c

Change KM_PUSHPAGE -> KM_SLEEP

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

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

Illumos 5818 - zfs {ref}compressratio is incorrect with 4k sector size

2015-06-10 16:24:01 -07:00

spa_stats.c

Illumos 5369 - arc flags should be an enum

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

spa.c

Illumos 5818 - zfs {ref}compressratio is incorrect with 4k sector size

2015-06-10 16:24:01 -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

Rename cv_wait_interruptible() to cv_wait_sig()

2015-06-11 10:50:47 -07:00

uberblock.c

Illumos #3598

2013-10-31 14:58:04 -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

Illumos 5027 - zfs large block support

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

vdev_file.c

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

2015-04-30 15:07:47 -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

Illumos 4368, 4369.

2014-07-29 10:55:29 -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

Relax restriction on zfs_ioc_next_obj() iteration

2015-05-14 11:16:08 -07:00

zfs_log.c

Illumos 5027 - zfs large block support

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

zfs_onexit.c

Change KM_PUSHPAGE -> KM_SLEEP

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

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

Add zfs_sb_prune_aliases() function

2015-06-22 10:22:49 -07:00

zfs_vnops.c

Illumos 5027 - zfs large block support

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

zfs_znode.c

Illumos 5027 - zfs large block support

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

zil.c

Illumos 5369 - arc flags should be an enum

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

zio_checksum.c

Illumos 4757, 4913

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

zio_compress.c

Illumos 4757, 4913

2014-08-01 14:28:05 -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

Safely handle security / ACL failures

2015-05-11 14:35:14 -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

Set the maximum ZVOL transfer size correctly

2015-03-25 11:58:42 -07:00