Thomas Bertschinger f9a9aea126 Add mutex_enter_interruptible() for interruptible sleeping IOCTLs ... Many long-running ZFS ioctls lock the spa_namespace_lock, forcing concurrent ioctls to sleep for the mutex. Previously, the only option is to call mutex_enter() which sleeps uninterruptibly. This is a usability issue for sysadmins, for example, if the admin runs `zpool status` while a slow `zpool import` is ongoing, the admin's shell will be locked in uninterruptible sleep for a long time. This patch resolves this admin usability issue by introducing mutex_enter_interruptible() which sleeps interruptibly while waiting to acquire a lock. It is implemented for both Linux and FreeBSD. The ZFS_IOC_POOL_CONFIGS ioctl, used by `zpool status`, is changed to use this new macro so that the command can be interrupted if it is issued during a concurrent `zpool import` (or other long-running operation). Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Thomas Bertschinger <bertschinger@lanl.gov> Closes #15360		2023-11-06 16:47:41 -08:00
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linux	Cleanup: Make memory barrier definitions consistent across kernels	2022-09-13 16:59:33 -07:00
spl	Add mutex_enter_interruptible() for interruptible sleeping IOCTLs	2023-11-06 16:47:41 -08:00
zfs/sys	FreeBSD: Reduce divergence from in-tree sources	2023-10-10 19:19:09 -07:00
Makefile.am	Add SHA2 SIMD feature tests for FreeBSD	2023-03-02 13:51:56 -08:00