arc_prune_task uses a refcount to protect arc_prune_t, but it doesn't prevent
the underlying zsb from disappearing if there's a concurrent umount. We fix
this by force the caller of arc_remove_prune_callback to wait for
arc_prune_taskq to finish.
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#4687Closes#4690
wait_event is a macro, so the current implementation will cause re-
evaluation of tq_next_id every time it wakes up. This would cause
taskq_wait_outstanding(tq, 0) to be equivalent to taskq_wait(tq)
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tim Chase <tim@chase2k.com>
Issue #553
While taskq_destroy would wait for dynamic_taskq to finish its tasks, but it
does not implies the thread being spawned is up and running. This will cause
taskq to be freed before the thread can exit.
We fix this by using tq_nspawn to indicate how many threads are being spawned
before they are inserted to the thread list. And have taskq_destroy to wait
for it to drop to zero.
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tim Chase <tim@chase2k.com>
Issue #553Closes#550
In 39cd90e, I mistakenly disabled the ability of using absolute expire time in
cv_timedwait_hires. I don't quite sure why I did that, so let's restore it.
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tim Chase <tim@chase2k.com>
Issue #553
Various rewrites to the descriptions of module parameters. Corrects
spelling mistakes, makes descriptions them more user-friendly and
describes some ZFS quirks which should be understood before changing
parameter values.
Signed-off-by: DHE <git@dehacked.net>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#4671
Skip ctldir in zfs_rezget, otherwise they will always get invalidated. This
will cause funny behaviour for the mounted snapdirs. Especially for
Linux >= 3.18, d_invalidate will detach the mountpoint and prevent anyone
automount it again as long as someone is still using the detached mount.
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#4514Closes#4661Closes#4672
Both libudev and libattr are recommended build requirements. As
such their development headers should lists in the rpm spec file
so those dependencies are pulled in when building rpm packages.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#4676
This is a purely cosmetical change, to consistently prefer one of
two (both acceptable) choises for the word parsable in documentation and
code. I don't really care which to use, but acording to wiktionary
https://en.wiktionary.org/wiki/parsable#English parsable is preferred.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#4682
Register iterate_shared if it exists so the kernel will used shared
lock and allowing concurrent readdir.
Also, use shared lock when doing llseek with SEEK_DATA or SEEK_HOLE
to allow concurrent seeking.
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#4664Closes#4665
The GPL test for posix_acl_release() didn't include <linux/module.h>.
Also run this test only when posix_acl_release() exists.
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #4665
Linux 4.7 changes i_mutex to i_rwsem, and we should used inode_lock and
inode_lock_shared to do exclusive and shared lock respectively.
We use spl_inode_lock{,_shared}() to hide the difference. Note that on older
kernel you'll always take an exclusive lock.
We also add all other inode_lock friends. And nested users now should
explicitly call spl_inode_lock_nested with correct subclass.
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue zfsonlinux/zfs#4665
Closes#549
This field is a duplicate of the inode->i_generation, so just
kill it.
Signed-off-by: Nikolay Borisov <n.borisov.lkml@gmail.com>
Signed-off-by: Chunwei Chen <tuxoko@gmail.com>
Signed-off-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#4538Closes#4654
Add argument format to print_one_column(), and use it to call
zfs_nicenum_format with, instead of just zfs_nicenum. Don't print "%"
for fragmentation or capacity percent values.
The calls to print_one_colum is made with ZFS_NICENUM_RAW if
cb->cb_literal (zpool list called with -p), and ZFS_NICENUM_1024 if not.
Also zpool_get_prop is modified to don't add "%" or "x" if literal.
Signed-off-by: Christer Ekholm <che@chrekh.se>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov
Closes#4657
These changes should have been part of the original 930b0d4
commit but were overlooked because 193a37c had not yet been
merged when the original change was ported.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #4631
This reverts commit 8302528617 and
ebecfcd699 which broke the build.
While these patches do apply cleanly and passed previous test
runs they need to be updated to account for the changes made in
commit 241b541574.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #3878
Fixed bug introduced in commit #c35b1882. Hinted by gcc:
zio_inject.c: In function ‘zio_handle_io_delay’:
zio_inject.c:382:3: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation]
if (handler->zi_record.zi_freq != 0 &&
^~
zio_inject.c:384:4: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’
continue;
^~~~~~~~
Signed-off-by: Marcel Huber <marcelhuberfoo@gmail.com>
Signed-off-by: Chunwei Chen <tuxoko@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#4632
Add a force option to allow zhack to add features which are
part of the known set of supported features. By default
this is disabled.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #3878
The zfs range lock interface no longer tightly depends on a
znode_t and therefore can be used in ztest. This allows the
previous ztest specific implementation to be removed, and for
additional test coverage of the shared version.
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Boris Protopopov <boris.protopopov@actifio.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #4023
Issue #4024
struct zvol_state contains a dummy znode, which is around 1KB on x64,
only for zfs_range_lock. But in reality, other than z_range_lock and
z_range_avl, zfs_range_lock only need znode on regular file, which
means we add 1KB on a structure and gain nothing.
In this patch, we remove the dummy znode for zvol_state. In order to
do that, we also need to refactor zfs_range_lock a bit. We move
z_range_lock and z_range_avl pair out of znode_t to form zfs_rlock_t.
This new struct replaces znode_t as the main handle inside the range
lock functions.
We also add pointers to z_size, z_blksz, and z_max_blksz so range lock
code doesn't depend on znode_t. This allows non-ZPL consumers like
Lustre to use the range locks with their equivalent znode_t structure.
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Boris Protopopov <boris.protopopov@actifio.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#4510
Simply containing a slash is not enough, presumably because foo/bar
could be either a dataset or a mountpoint.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Laager <rlaager@wiktel.com>
Closes#4655
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Reviewed by: George Wilson <gwilson@zfsmail.com>
Approved by: Gordon Ross <gwr@nexenta.com>
References:
https://www.illumos.org/issues/1644
Ported-by: Richard Laager <rlaager@wiktel.com>
Signed-off-by: Richard Laager <rlaager@wiktel.com>
This change is primarily about adding inline references in the
properties section to the traditional mount option names.
There are some other editorial changes too.
Signed-off-by: Richard Laager <rlaager@wiktel.com>
Userland version of cv_timedwait_hires() always assumes absolute time.
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Ported by: Denys Rtveliashvili <denys@rtveliashvili.name>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
OpenZFS-issue: https://www.illumos.org/issues/6739
OpenZFS-commit: https://github.com/illumos/illumos-gate/commit/41c6413
Porting Notes:
The ported change has revealed a number of problems in the Linux-specific code,
as it was expecting incorrect return codes from pthread_* functions.
Reviewed and improved the usage of pthread_* function in lib/libzpool/kernel.c.
The was originally using interruptible cv_timedwait_sig, but was changed
to uninterruptible cv_timedwait_hires in ae6d0c6. Use _sig_hires instead
to allow interruptible sleep.
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#4633Closes#4634
- In older systems without sysroot.mount, import before dracut-mount,
and re-enable old dracut mount hook
- rootflags MUST be present even if the administrator neglected to
specify it explicitly
- Check that mount.zfs exists in sbindir
- Remove awk and head as (now unused) requirements, add grep, and
install the right mount.zfs
- Eliminate one use of grep in Dracut
- Use a more accurate grepping statement to identify zfsutil in rootflags
- Ensure that pooldev is nonempty
- Properly handle /dev/sd* devices and more
- Use new -P to get list of zpool devices
- Bail out of the generator when zfs:AUTO is on the root command line
- Ignore errors from systemctl trying to load sysroot.mount, we only
care about the output
- Determine which one is the correct initqueuedir at run time.
- Add a compatibility getargbool for our detection / setup script.
- Update dracut .gitignore files
Signed-off-by: <Matthew Thode mthode@mthode.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#4558Closes#4562
6093 zfsctl_shares_lookup should only VN_RELE() on zfs_zget() success
Reviewed by: Gordon Ross <gwr@nexenta.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
OpenZFS-issue: https://www.illumos.org/issues/6093
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/0f92170Closes#4630
This function was always implemented slightly differently under Linux
and therefore never suffered from this issue. The patch has been
updated and applied as cleanup in order to minimize differences with
the upstream OpenZFS code.
This reverts commit 4cd77889b6. The
i_generation field in the inode is 32-bit and the SA code expects
64-bit fixed values. Revert this optimization for now until
this is cleanly addressed.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #4538
The receive_writer_arg and receive_arg structures become large
when ZFS is compiled with debugging enabled. This results in
gcc throwing an error about excessive stack usage:
module/zfs/dmu_send.c: In function ‘dmu_recv_stream’:
module/zfs/dmu_send.c:2502:1: error: the frame size of 1256 bytes is
larger than 1024 bytes [-Werror=frame-larger-than=]
Fix this by allocating those functions on the heap, rather than
on the stack.
With patch: dmu_send.c:2350:1:dmu_recv_stream 240 static
Without patch: dmu_send.c:2350:1:dmu_recv_stream 1336 static
Signed-off-by: Nikolay Borisov <n.borisov.lkml@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#4620
