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460748d4ae
mirror_zfs/module/os/linux/spl
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Brian Behlendorf 460748d4ae
Switch from _Noreturn to __attribute__((noreturn)) 
Parts of the Linux kernel build system struggle with _Noreturn.  This
results in the following warnings when building on RHEL 8.5, and likely
other environments.  Switch to using the __attribute__((noreturn)).

  warning: objtool: dbuf_free_range()+0x2b8:
    return with modified stack frame
  warning: objtool: dbuf_free_range()+0x0:
    stack state mismatch: cfa1=7+40 cfa2=7+8
  ...
  WARNING: EXPORT symbol "arc_buf_size" [zfs.ko] version generation
    failed, symbol will not be versioned.
  WARNING: EXPORT symbol "spa_open" [zfs.ko] version generation
    failed, symbol will not be versioned.
  ...

Additionally, __thread_exit() has been renamed spl_thread_exit() and
made a static inline function.  This was needed because the kernel
will generate a warning for symbols which are __attribute__((noreturn))
and then exported with EXPORT_SYMBOL.

While we could continue to use _Noreturn in user space I've also
switched it to __attribute__((noreturn)) purely for consistency
throughout the code base.

Reviewed-by: Ryan Moeller <freqlabs@FreeBSD.org>
Reviewed-by: Brian Atkinson <batkinson@lanl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #13238
2022-03-23 08:51:00 -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 Fix ACL checks for NFS kernel server 2022-03-18 06:47:57 -06:00
spl-err.c spl: make 'spl_panic_halt' working for all cases 2022-02-18 11:43:11 -08:00
spl-generic.c Forbid b{copy,zero,cmp}(). Don't include <strings.h> for <string.h> 2022-03-15 15:13:48 -07:00
spl-kmem-cache.c Clean up CSTYLEDs 2022-01-26 11:38:52 -08:00
spl-kmem.c Clean up CSTYLEDs 2022-01-26 11:38:52 -08:00
spl-kstat.c Linux 5.17 compat: PDE_DATA() renamed to pde_data() 2022-01-25 12:53:00 -08:00
spl-proc.c Clean up CSTYLEDs 2022-01-26 11:38:52 -08:00
spl-procfs-list.c Linux 5.17 compat: PDE_DATA() renamed to pde_data() 2022-01-25 12:53:00 -08:00
spl-taskq.c module: icp: remove other provider types 2022-02-15 16:23:53 -08:00
spl-thread.c Switch from _Noreturn to __attribute__((noreturn)) 2022-03-23 08:51:00 -07:00
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 module/*.ko: prune .data, global .rodata 2022-01-14 15:37:55 -08:00
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