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95 lines
2.9 KiB
95 lines
2.9 KiB
commit 472894d2cfee5751b44c0aaa71ed87df81c8e62e |
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Author: Adhemerval Zanella <adhemerval.zanella@linaro.org> |
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Date: Wed Oct 11 13:43:56 2023 -0300 |
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malloc: Use __get_nprocs on arena_get2 (BZ 30945) |
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This restore the 2.33 semantic for arena_get2. It was changed by |
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11a02b035b46 to avoid arena_get2 call malloc (back when __get_nproc |
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was refactored to use an scratch_buffer - 903bc7dcc2acafc). The |
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__get_nproc was refactored over then and now it also avoid to call |
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malloc. |
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The 11a02b035b46 did not take in consideration any performance |
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implication, which should have been discussed properly. The |
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__get_nprocs_sched is still used as a fallback mechanism if procfs |
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and sysfs is not acessible. |
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Checked on x86_64-linux-gnu. |
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Reviewed-by: DJ Delorie <dj@redhat.com> |
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diff --git a/include/sys/sysinfo.h b/include/sys/sysinfo.h |
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index c490561581..65742b1036 100644 |
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--- a/include/sys/sysinfo.h |
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+++ b/include/sys/sysinfo.h |
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@@ -14,10 +14,6 @@ libc_hidden_proto (__get_nprocs_conf) |
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extern int __get_nprocs (void); |
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libc_hidden_proto (__get_nprocs) |
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-/* Return the number of available processors which the process can |
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- be scheduled. */ |
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-extern int __get_nprocs_sched (void) attribute_hidden; |
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- |
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/* Return number of physical pages of memory in the system. */ |
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extern long int __get_phys_pages (void); |
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libc_hidden_proto (__get_phys_pages) |
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diff --git a/malloc/arena.c b/malloc/arena.c |
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index d1e214ac2e..a1a75e5a2b 100644 |
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--- a/malloc/arena.c |
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+++ b/malloc/arena.c |
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@@ -824,7 +824,7 @@ arena_get2 (size_t size, mstate avoid_arena) |
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narenas_limit = mp_.arena_max; |
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else if (narenas > mp_.arena_test) |
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{ |
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- int n = __get_nprocs_sched (); |
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+ int n = __get_nprocs (); |
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if (n >= 1) |
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narenas_limit = NARENAS_FROM_NCORES (n); |
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diff --git a/misc/getsysstats.c b/misc/getsysstats.c |
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index 5f36adc0e8..23cc112074 100644 |
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--- a/misc/getsysstats.c |
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+++ b/misc/getsysstats.c |
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@@ -44,12 +44,6 @@ weak_alias (__get_nprocs, get_nprocs) |
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link_warning (get_nprocs, "warning: get_nprocs will always return 1") |
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-int |
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-__get_nprocs_sched (void) |
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-{ |
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- return 1; |
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-} |
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- |
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long int |
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__get_phys_pages (void) |
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{ |
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diff --git a/sysdeps/mach/getsysstats.c b/sysdeps/mach/getsysstats.c |
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index 5184e5eee1..d3834f3b69 100644 |
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--- a/sysdeps/mach/getsysstats.c |
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+++ b/sysdeps/mach/getsysstats.c |
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@@ -62,12 +62,6 @@ __get_nprocs (void) |
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libc_hidden_def (__get_nprocs) |
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weak_alias (__get_nprocs, get_nprocs) |
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-int |
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-__get_nprocs_sched (void) |
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-{ |
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- return __get_nprocs (); |
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-} |
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- |
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/* Return the number of physical pages on the system. */ |
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long int |
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__get_phys_pages (void) |
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diff --git a/sysdeps/unix/sysv/linux/getsysstats.c b/sysdeps/unix/sysv/linux/getsysstats.c |
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index b0b6c154ac..1ea7f1f01f 100644 |
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--- a/sysdeps/unix/sysv/linux/getsysstats.c |
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+++ b/sysdeps/unix/sysv/linux/getsysstats.c |
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@@ -29,7 +29,7 @@ |
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#include <sys/sysinfo.h> |
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#include <sysdep.h> |
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-int |
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+static int |
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__get_nprocs_sched (void) |
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{ |
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enum
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