glibc/SOURCES/glibc-rh2085529-4.patch
2022-09-28 11:23:43 +00:00

39 lines
1.4 KiB
Diff

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