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076f82 |
Revert glibc-rh2024347-13.patch. Enable rseq by default.
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076f82 |
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diff --git a/manual/tunables.texi b/manual/tunables.texi
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index f559c44dcec4624b..28ff502990c2a10f 100644
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--- a/manual/tunables.texi
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+++ b/manual/tunables.texi
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@@ -425,13 +425,11 @@ The value is measured in bytes. The default is @samp{41943040}
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@end deftp
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076f82 |
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076f82 |
@deftp Tunable glibc.pthread.rseq
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-The @code{glibc.pthread.rseq} tunable can be set to @samp{1}, to enable
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-restartable sequences support. @Theglibc{} uses this to optimize the
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076f82 |
-@code{sched_getcpu} function.
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-
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-The default is @samp{0}, which means that applications can perform
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-restartable sequences registration, but @code{sched_getcpu} is not
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076f82 |
-accelerated.
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+The @code{glibc.pthread.rseq} tunable can be set to @samp{0}, to disable
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+restartable sequences support in @theglibc{}. This enables applications
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+to perform direct restartable sequence registration with the kernel.
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+The default is @samp{1}, which means that @theglibc{} performs
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+registration on behalf of the application.
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076f82 |
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Restartable sequences are a Linux-specific extension.
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076f82 |
@end deftp
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diff --git a/sysdeps/nptl/dl-tunables.list b/sysdeps/nptl/dl-tunables.list
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076f82 |
index df2a39ce01858d3b..d24f4be0d08ba407 100644
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--- a/sysdeps/nptl/dl-tunables.list
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+++ b/sysdeps/nptl/dl-tunables.list
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076f82 |
@@ -31,7 +31,7 @@ glibc {
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type: INT_32
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minval: 0
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maxval: 1
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- default: 0
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+ default: 1
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}
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}
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}
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