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authorLinus Torvalds <torvalds@linux-foundation.org>2020-10-23 17:13:53 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-23 17:13:53 -0700
commitc80e42a4963b3f593d53fb8f565e5bbca61a6531 (patch)
tree63327ed70e63459b6f9b5899dc14c5b35ad54823 /Documentation/admin-guide
parenta5e5c274c920f693d9c1ab65440d8e53a4530aca (diff)
parent62af696471e58bdfcf416fd56f032a60853c2bae (diff)
Merge tag 'docs-5.10-2' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet: "A handful of late-arriving documentation fixes" * tag 'docs-5.10-2' of git://git.lwn.net/linux: docs: Add two missing entries in vm sysctl index docs/vm: trivial fixes to several spelling mistakes docs: submitting-patches: describe preserving review/test tags Documentation: Chinese translation of Documentation/arm64/hugetlbpage.rst Documentation: x86: fix a missing word in x86_64/mm.rst. docs: driver-api: remove a duplicated index entry docs: lkdtm: Modernize and improve details docs: deprecated.rst: Expand str*cpy() replacement notes docs/cpu-load: format the example code.
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/cpu-load.rst63
-rw-r--r--Documentation/admin-guide/sysctl/vm.rst2
2 files changed, 35 insertions, 30 deletions
diff --git a/Documentation/admin-guide/cpu-load.rst b/Documentation/admin-guide/cpu-load.rst
index ebdecf864080..f3ada90e9ca8 100644
--- a/Documentation/admin-guide/cpu-load.rst
+++ b/Documentation/admin-guide/cpu-load.rst
@@ -61,43 +61,46 @@ will lead to quite erratic information inside ``/proc/stat``::
static volatile sig_atomic_t stop;
- static void sighandler (int signr)
+ static void sighandler(int signr)
{
- (void) signr;
- stop = 1;
+ (void) signr;
+ stop = 1;
}
+
static unsigned long hog (unsigned long niters)
{
- stop = 0;
- while (!stop && --niters);
- return niters;
+ stop = 0;
+ while (!stop && --niters);
+ return niters;
}
+
int main (void)
{
- int i;
- struct itimerval it = { .it_interval = { .tv_sec = 0, .tv_usec = 1 },
- .it_value = { .tv_sec = 0, .tv_usec = 1 } };
- sigset_t set;
- unsigned long v[HIST];
- double tmp = 0.0;
- unsigned long n;
- signal (SIGALRM, &sighandler);
- setitimer (ITIMER_REAL, &it, NULL);
-
- hog (ULONG_MAX);
- for (i = 0; i < HIST; ++i) v[i] = ULONG_MAX - hog (ULONG_MAX);
- for (i = 0; i < HIST; ++i) tmp += v[i];
- tmp /= HIST;
- n = tmp - (tmp / 3.0);
-
- sigemptyset (&set);
- sigaddset (&set, SIGALRM);
-
- for (;;) {
- hog (n);
- sigwait (&set, &i);
- }
- return 0;
+ int i;
+ struct itimerval it = {
+ .it_interval = { .tv_sec = 0, .tv_usec = 1 },
+ .it_value = { .tv_sec = 0, .tv_usec = 1 } };
+ sigset_t set;
+ unsigned long v[HIST];
+ double tmp = 0.0;
+ unsigned long n;
+ signal(SIGALRM, &sighandler);
+ setitimer(ITIMER_REAL, &it, NULL);
+
+ hog (ULONG_MAX);
+ for (i = 0; i < HIST; ++i) v[i] = ULONG_MAX - hog(ULONG_MAX);
+ for (i = 0; i < HIST; ++i) tmp += v[i];
+ tmp /= HIST;
+ n = tmp - (tmp / 3.0);
+
+ sigemptyset(&set);
+ sigaddset(&set, SIGALRM);
+
+ for (;;) {
+ hog(n);
+ sigwait(&set, &i);
+ }
+ return 0;
}
diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst
index 4b9d2e8e9142..f455fa00c00f 100644
--- a/Documentation/admin-guide/sysctl/vm.rst
+++ b/Documentation/admin-guide/sysctl/vm.rst
@@ -27,6 +27,7 @@ Currently, these files are in /proc/sys/vm:
- admin_reserve_kbytes
- block_dump
- compact_memory
+- compaction_proactiveness
- compact_unevictable_allowed
- dirty_background_bytes
- dirty_background_ratio
@@ -37,6 +38,7 @@ Currently, these files are in /proc/sys/vm:
- dirty_writeback_centisecs
- drop_caches
- extfrag_threshold
+- highmem_is_dirtyable
- hugetlb_shm_group
- laptop_mode
- legacy_va_layout