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spl: remove old atomic lock

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Long ago, SPL atomics were implemented as a global spinlock over
conventional operations. In 5e9b5d832b (2009-10) they was converted to
proper atomics, with the spinlock retained as a fallback.

The switch to compile with the fallback was later removed in a91258913f
(2018-05), but the code it enabled wasn't. So lets do that.

Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #18117
This commit is contained in:
Rob Norris
2025-12-31 20:40:24 +11:00
committed by Brian Behlendorf
parent 2f1f25217f
commit 2ca6e880da
2 changed files with 0 additions and 37 deletions
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module/Kbuild.in
-1
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@@ -69,7 +69,6 @@ ccflags-$(CONFIG_SPARC64) += -Wno-unused-value
obj-$(CONFIG_ZFS) := spl.o zfs.o
SPL_OBJS := \
spl-atomic.o \
spl-condvar.o \
spl-cred.o \
spl-err.o \