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mirror_zfs/module/os/linux/spl
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Brian Behlendorf 837e426c1f Linux: Never sleep in kmem_cache_alloc(..., KM_NOSLEEP) (#14926) 
When a kmem cache is exhausted and needs to be expanded a new
slab is allocated.  KM_SLEEP callers can block and wait for the
allocation, but KM_NOSLEEP callers were incorrectly allowed to
block as well.

Resolve this by attempting an emergency allocation as a best
effort.  This may fail but that's fine since any KM_NOSLEEP
consumer is required to handle an allocation failure.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Adam Moss <c@yotes.com>
Reviewed-by: Brian Atkinson <batkinson@lanl.gov>
Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
2023-09-11 15:17:41 -07:00
..
Makefile.in Add zfs_file_* interface, remove vnodes 2019-11-21 09:32:57 -08:00
README.md Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
spl-atomic.c Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
spl-condvar.c Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
spl-cred.c Linux 6.3 compat: idmapped mount API changes 2023-06-05 10:59:02 -07:00
spl-err.c Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
spl-generic.c Fix Clang 15 compilation errors 2023-06-05 18:25:57 -07:00
spl-kmem-cache.c Linux: Never sleep in kmem_cache_alloc(..., KM_NOSLEEP) (#14926) 2023-09-11 15:17:41 -07:00
spl-kmem.c Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
spl-kstat.c Linux 5.17 compat: PDE_DATA() renamed to pde_data() 2022-02-04 08:33:52 -08:00
spl-proc.c linux/spl: proc: use global table_{min,max} values instead of local ones 2021-04-19 15:22:57 -07:00
spl-procfs-list.c Linux 6.1 compat: change order of sys/mutex.h includes 2022-11-01 12:44:56 -07:00
spl-taskq.c Fix cpu hotplug atomic sleep issue 2022-02-15 21:52:45 -08:00
spl-thread.c Linux 5.17 compat: dequeue_signal() takes a 4th argument 2022-02-04 08:33:52 -08:00
spl-trace.c Add tracepoints for taskq entry lifetime events 2019-11-01 13:14:54 -07:00
spl-tsd.c Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
spl-vmem.c Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
spl-xdr.c Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
spl-zlib.c Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
THIRDPARTYLICENSE.gplv2 OpenZFS restructuring - move platform specific sources 2019-09-06 11:26:26 -07:00
THIRDPARTYLICENSE.gplv2.descrip OpenZFS restructuring - move platform specific sources 2019-09-06 11:26:26 -07:00

README.md

The Solaris Porting Layer, SPL, is a Linux kernel module which provides a compatibility layer used by the OpenZFS project.

Installation

The latest version of the SPL is maintained as part of this repository. Only when building ZFS version 0.7.x or earlier must an external SPL release be used. These releases can be found at:

Release

The SPL is released under a GPLv2 license.
For more details see the NOTICE and THIRDPARTYLICENSE files; UCRL-CODE-235197