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zfs/include/os/linux/spl/sys
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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
..
ia32 x86 asm: Replace .align with .balign 2023-01-24 09:04:39 -08:00
acl.h Clean up CSTYLEDs 2022-01-26 11:38:52 -08:00
atomic.h More aggsum optimizations 2021-06-07 09:02:47 -07:00
byteorder.h Reduce false positives from Static Analyzers 2022-09-30 15:30:12 -07:00
callb.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
callo.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
cmn_err.h spl: cmn_err_once() should be usable in brace-less if else statements 2023-03-15 11:13:25 -07:00
condvar.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
cred.h Linux 6.3 compat: idmapped mount API changes 2023-04-10 14:15:36 -07:00
ctype.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
debug.h debug: fix output from VERIFY0 assertion 2022-10-28 11:46:44 -07:00
disp.h Cleanup: Use OpenSolaris functions to call scheduler 2022-09-12 09:55:37 -07:00
dkio.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
errno.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
fcntl.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
file.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
inttypes.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
isa_defs.h Add loongarch64 support 2023-04-25 16:05:45 -07:00
kmem.h Use __attribute__((malloc)) on memory allocation functions 2023-05-26 15:47:52 -07:00
kmem_cache.h linux/spl/kmem_cache: undefine `kmem_cache_alloc` before defining it 2023-08-25 13:33:40 -07:00
kstat.h Cleanup: Switch to strlcpy from strncpy 2022-09-27 16:35:29 -07:00
list.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
misc.h zed: mark disks as REMOVED when they are removed 2022-09-28 09:48:46 -07:00
mod_os.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
mutex.h Add mutex_enter_interruptible() for interruptible sleeping IOCTLs 2023-11-06 16:47:41 -08:00
param.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
proc.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
processor.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
procfs_list.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
random.h FreeBSD: fix compilation of FreeBSD world after 29274c9f6 2021-06-25 10:28:51 -07:00
rwlock.h Clean up CSTYLEDs 2022-01-26 11:38:52 -08:00
shrinker.h Linux 6.0 compat: register_shrinker() now var-arg 2022-08-08 16:18:30 -07:00
sid.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
signal.h Add SIGSTOP and SIGTSTP handling to issig 2021-04-15 13:34:35 -07:00
simd.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
stat.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
string.h Forbid b{copy,zero,cmp}(). Don't include <strings.h> for <string.h> 2022-03-15 15:13:48 -07:00
sunddi.h Remove hw_serial, ddi_strtoul() 2022-05-13 10:15:31 -07:00
sysmacros.h zfs_rename: support RENAME_* flags 2022-10-28 09:49:20 -07:00
systeminfo.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
taskq.h Add a delay to tearing down threads. 2023-06-26 13:57:12 -07:00
thread.h Switch from _Noreturn to __attribute__((noreturn)) 2022-03-23 08:51:00 -07:00
time.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
timer.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
trace.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
trace_spl.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
trace_taskq.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
tsd.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
types.h Linux 6.5 compat: intptr_t definition is canonically signed 2023-07-21 16:35:12 -07:00
types32.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
uio.h zvol: Remove broken blk-mq optimization 2023-11-06 16:47:24 -08:00
user.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
vfs.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
vmem.h Use __attribute__((malloc)) on memory allocation functions 2023-05-26 15:47:52 -07:00
vmsystm.h Add membar_sync 2022-09-20 15:32:44 -07:00
vnode.h Consolidate zfs_holey and zfs_access 2020-10-31 09:40:08 -07:00
wait.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
wmsum.h Introduce write-mostly sums 2021-05-27 14:27:29 -06:00
zmod.h Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
zone.h Add Linux namespace delegation support 2022-06-10 09:51:46 -07:00