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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-10-11 13:43:56 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-02-12 09:56:44 -0300 |
| commit | 23021eda75eee44b4b2ae350e63dc404dac6407d (patch) | |
| tree | c84339debbf325aeb80122cf01435aee00b6c225 | |
| parent | eee7525d35ec16bbe81435e41079ab72519d825c (diff) | |
| download | glibc-23021eda75eee44b4b2ae350e63dc404dac6407d.tar.gz glibc-23021eda75eee44b4b2ae350e63dc404dac6407d.tar.xz glibc-23021eda75eee44b4b2ae350e63dc404dac6407d.zip | |
malloc: Use __get_nprocs on arena_get2 (BZ 30945)
This restore the 2.33 semantic for arena_get2. It was changed by 11a02b035b46 to avoid arena_get2 call malloc (back when __get_nproc was refactored to use an scratch_buffer - 903bc7dcc2acafc). The __get_nproc was refactored over then and now it also avoid to call malloc. The 11a02b035b46 did not take in consideration any performance implication, which should have been discussed properly. The __get_nprocs_sched is still used as a fallback mechanism if procfs and sysfs is not acessible. Checked on x86_64-linux-gnu. Reviewed-by: DJ Delorie <dj@redhat.com> (cherry picked from commit 472894d2cfee5751b44c0aaa71ed87df81c8e62e)
| -rw-r--r-- | include/sys/sysinfo.h | 4 | ||||
| -rw-r--r-- | malloc/arena.c | 2 | ||||
| -rw-r--r-- | misc/getsysstats.c | 6 | ||||
| -rw-r--r-- | sysdeps/mach/getsysstats.c | 6 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/getsysstats.c | 2 |
5 files changed, 2 insertions, 18 deletions
diff --git a/include/sys/sysinfo.h b/include/sys/sysinfo.h index c490561581..65742b1036 100644 --- a/include/sys/sysinfo.h +++ b/include/sys/sysinfo.h @@ -14,10 +14,6 @@ libc_hidden_proto (__get_nprocs_conf) extern int __get_nprocs (void); libc_hidden_proto (__get_nprocs) -/* Return the number of available processors which the process can - be scheduled. */ -extern int __get_nprocs_sched (void) attribute_hidden; - /* Return number of physical pages of memory in the system. */ extern long int __get_phys_pages (void); libc_hidden_proto (__get_phys_pages) diff --git a/malloc/arena.c b/malloc/arena.c index ccd193953b..78416205b6 100644 --- a/malloc/arena.c +++ b/malloc/arena.c @@ -934,7 +934,7 @@ arena_get2 (size_t size, mstate avoid_arena) narenas_limit = mp_.arena_max; else if (narenas > mp_.arena_test) { - int n = __get_nprocs_sched (); + int n = __get_nprocs (); if (n >= 1) narenas_limit = NARENAS_FROM_NCORES (n); diff --git a/misc/getsysstats.c b/misc/getsysstats.c index 5f36adc0e8..23cc112074 100644 --- a/misc/getsysstats.c +++ b/misc/getsysstats.c @@ -44,12 +44,6 @@ weak_alias (__get_nprocs, get_nprocs) link_warning (get_nprocs, "warning: get_nprocs will always return 1") -int -__get_nprocs_sched (void) -{ - return 1; -} - long int __get_phys_pages (void) { diff --git a/sysdeps/mach/getsysstats.c b/sysdeps/mach/getsysstats.c index 5184e5eee1..d3834f3b69 100644 --- a/sysdeps/mach/getsysstats.c +++ b/sysdeps/mach/getsysstats.c @@ -62,12 +62,6 @@ __get_nprocs (void) libc_hidden_def (__get_nprocs) weak_alias (__get_nprocs, get_nprocs) -int -__get_nprocs_sched (void) -{ - return __get_nprocs (); -} - /* Return the number of physical pages on the system. */ long int __get_phys_pages (void) diff --git a/sysdeps/unix/sysv/linux/getsysstats.c b/sysdeps/unix/sysv/linux/getsysstats.c index b0b6c154ac..1ea7f1f01f 100644 --- a/sysdeps/unix/sysv/linux/getsysstats.c +++ b/sysdeps/unix/sysv/linux/getsysstats.c @@ -29,7 +29,7 @@ #include <sys/sysinfo.h> #include <sysdep.h> -int +static int __get_nprocs_sched (void) { enum |