Merge branch 'iomap-write' into linux-gfs2/for-next

Pull in the gfs2 iomap-write changes: Tweak the existing code to
properly support iomap write and eliminate an unnecessary special case
in gfs2_block_map.  Implement iomap write support for buffered and
direct I/O.  Simplify some of the existing code and eliminate code that
is no longer used:

  gfs2: Remove gfs2_write_{begin,end}
  gfs2: iomap direct I/O support
  gfs2: gfs2_extent_length cleanup
  gfs2: iomap buffered write support
  gfs2: Further iomap cleanups

This is based on the following changes on the xfs 'iomap-4.19-merge'
branch:

  iomap: add private pointer to struct iomap
  iomap: add a page_done callback
  iomap: generic inline data handling
  iomap: complete partial direct I/O writes synchronously
  iomap: mark newly allocated buffer heads as new
  fs: factor out a __generic_write_end helper

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

14 files changed, 71 insertions, 29 deletions

diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h
index b02c41e53d56..39e364c70caf 100644
--- a/tools/include/uapi/linux/kvm.h
+++ b/tools/include/uapi/linux/kvm.h
@@ -677,10 +677,10 @@ struct kvm_ioeventfd {
 };
 
 #define KVM_X86_DISABLE_EXITS_MWAIT          (1 << 0)
-#define KVM_X86_DISABLE_EXITS_HTL            (1 << 1)
+#define KVM_X86_DISABLE_EXITS_HLT            (1 << 1)
 #define KVM_X86_DISABLE_EXITS_PAUSE          (1 << 2)
 #define KVM_X86_DISABLE_VALID_EXITS          (KVM_X86_DISABLE_EXITS_MWAIT | \
-                                              KVM_X86_DISABLE_EXITS_HTL | \
+                                              KVM_X86_DISABLE_EXITS_HLT | \
                                               KVM_X86_DISABLE_EXITS_PAUSE)
 
 /* for KVM_ENABLE_CAP */
diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h
index db9f15f5db04..c0d7ea0bf5b6 100644
--- a/tools/include/uapi/linux/prctl.h
+++ b/tools/include/uapi/linux/prctl.h
@@ -170,7 +170,7 @@ struct prctl_mm_map {
  * asking selinux for a specific new context (e.g. with runcon) will result
  * in execve returning -EPERM.
  *
- * See Documentation/prctl/no_new_privs.txt for more details.
+ * See Documentation/userspace-api/no_new_privs.rst for more details.
  */
 #define PR_SET_NO_NEW_PRIVS     38
 #define PR_GET_NO_NEW_PRIVS     39
diff --git a/tools/lib/api/fs/fs.c b/tools/lib/api/fs/fs.c
index 6a12bbf39f7b..7aba8243a0e7 100644
--- a/tools/lib/api/fs/fs.c
+++ b/tools/lib/api/fs/fs.c
@@ -201,7 +201,7 @@ static void mem_toupper(char *f, size_t len)
 
 /*
  * Check for "NAME_PATH" environment variable to override fs location (for
- * testing). This matches the recommendation in Documentation/sysfs-rules.txt
+ * testing). This matches the recommendation in Documentation/admin-guide/sysfs-rules.rst
  * for SYSFS_PATH.
  */
 static bool fs__env_override(struct fs *fs)
diff --git a/tools/perf/util/bpf-prologue.c b/tools/perf/util/bpf-prologue.c
index 29347756b0af..77e4891e17b0 100644
--- a/tools/perf/util/bpf-prologue.c
+++ b/tools/perf/util/bpf-prologue.c
@@ -61,7 +61,7 @@ check_pos(struct bpf_insn_pos *pos)
 
 /*
  * Convert type string (u8/u16/u32/u64/s8/s16/s32/s64 ..., see
- * Documentation/trace/kprobetrace.txt) to size field of BPF_LDX_MEM
+ * Documentation/trace/kprobetrace.rst) to size field of BPF_LDX_MEM
  * instruction (BPF_{B,H,W,DW}).
  */
 static int
diff --git a/tools/power/cpupower/bench/parse.c b/tools/power/cpupower/bench/parse.c
index 9b65f052081f..9ba8a44ad2a7 100644
--- a/tools/power/cpupower/bench/parse.c
+++ b/tools/power/cpupower/bench/parse.c
@@ -104,7 +104,7 @@ FILE *prepare_output(const char *dirname)
                         dirname, time(NULL));
         }
 
-        dprintf("logilename: %s\n", filename);
+        dprintf("logfilename: %s\n", filename);
 
         output = fopen(filename, "w+");
         if (output == NULL) {
diff --git a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
index 5b3205f16217..5b8c4956ff9a 100644
--- a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
+++ b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
@@ -126,6 +126,20 @@ void fix_up_intel_idle_driver_name(char *tmp, int num)
         }
 }
 
+#ifdef __powerpc__
+void map_power_idle_state_name(char *tmp)
+{
+        if (!strncmp(tmp, "stop0_lite", CSTATE_NAME_LEN))
+                strcpy(tmp, "stop0L");
+        else if (!strncmp(tmp, "stop1_lite", CSTATE_NAME_LEN))
+                strcpy(tmp, "stop1L");
+        else if (!strncmp(tmp, "stop2_lite", CSTATE_NAME_LEN))
+                strcpy(tmp, "stop2L");
+}
+#else
+void map_power_idle_state_name(char *tmp) { }
+#endif
+
 static struct cpuidle_monitor *cpuidle_register(void)
 {
         int num;
@@ -145,6 +159,7 @@ static struct cpuidle_monitor *cpuidle_register(void)
                 if (tmp == NULL)
                         continue;
 
+                map_power_idle_state_name(tmp);
                 fix_up_intel_idle_driver_name(tmp, num);
                 strncpy(cpuidle_cstates[num].name, tmp, CSTATE_NAME_LEN - 1);
                 free(tmp);
diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c
index 05f953f0f0a0..051da0a7c454 100644
--- a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c
+++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c
@@ -70,36 +70,43 @@ void print_n_spaces(int n)
                 printf(" ");
 }
 
-/* size of s must be at least n + 1 */
+/*s is filled with left and right spaces
+ *to make its length atleast n+1
+ */
 int fill_string_with_spaces(char *s, int n)
 {
+        char *temp;
         int len = strlen(s);
-        if (len > n)
+
+        if (len >= n)
                 return -1;
+
+        temp = malloc(sizeof(char) * (n+1));
         for (; len < n; len++)
                 s[len] = ' ';
         s[len] = '\0';
+        snprintf(temp, n+1, " %s", s);
+        strcpy(s, temp);
+        free(temp);
         return 0;
 }
 
+#define MAX_COL_WIDTH 6
 void print_header(int topology_depth)
 {
         int unsigned mon;
         int state, need_len;
         cstate_t s;
         char buf[128] = "";
-        int percent_width = 4;
 
         fill_string_with_spaces(buf, topology_depth * 5 - 1);
         printf("%s|", buf);
 
         for (mon = 0; mon < avail_monitors; mon++) {
-                need_len = monitors[mon]->hw_states_num * (percent_width + 3)
+                need_len = monitors[mon]->hw_states_num * (MAX_COL_WIDTH + 1)
                         - 1;
-                if (mon != 0) {
-                        printf("|| ");
-                        need_len--;
-                }
+                if (mon != 0)
+                        printf("||");
                 sprintf(buf, "%s", monitors[mon]->name);
                 fill_string_with_spaces(buf, need_len);
                 printf("%s", buf);
@@ -107,23 +114,21 @@ void print_header(int topology_depth)
         printf("\n");
 
         if (topology_depth > 2)
-                printf("PKG |");
+                printf(" PKG|");
         if (topology_depth > 1)
                 printf("CORE|");
         if (topology_depth > 0)
-                printf("CPU |");
+                printf(" CPU|");
 
         for (mon = 0; mon < avail_monitors; mon++) {
                 if (mon != 0)
-                        printf("|| ");
-                else
-                        printf(" ");
+                        printf("||");
                 for (state = 0; state < monitors[mon]->hw_states_num; state++) {
                         if (state != 0)
-                                printf(" | ");
+                                printf("|");
                         s = monitors[mon]->hw_states[state];
                         sprintf(buf, "%s", s.name);
-                        fill_string_with_spaces(buf, percent_width);
+                        fill_string_with_spaces(buf, MAX_COL_WIDTH);
                         printf("%s", buf);
                 }
                 printf(" ");
diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h
index 9e43f3371fbc..2ae50b499e0a 100644
--- a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h
+++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h
@@ -15,7 +15,16 @@
 
 #define MONITORS_MAX 20
 #define MONITOR_NAME_LEN 20
+
+/* CSTATE_NAME_LEN is limited by header field width defined
+ * in cpupower-monitor.c. Header field width is defined to be
+ * sum of percent width and two spaces for padding.
+ */
+#ifdef __powerpc__
+#define CSTATE_NAME_LEN 7
+#else
 #define CSTATE_NAME_LEN 5
+#endif
 #define CSTATE_DESC_LEN 60
 
 int cpu_count;
diff --git a/tools/power/pm-graph/config/custom-timeline-functions.cfg b/tools/power/pm-graph/config/custom-timeline-functions.cfg
index 4f80ad7d7275..f8fcb06fd68b 100644
--- a/tools/power/pm-graph/config/custom-timeline-functions.cfg
+++ b/tools/power/pm-graph/config/custom-timeline-functions.cfg
@@ -105,7 +105,7 @@ override-dev-timeline-functions: true
 #       example: [color=#CC00CC]
 #
 #   arglist: A list of arguments from registers/stack addresses. See URL:
-#            https://www.kernel.org/doc/Documentation/trace/kprobetrace.txt
+#            https://www.kernel.org/doc/Documentation/trace/kprobetrace.rst
 #
 #       example: cpu=%di:s32
 #
@@ -170,7 +170,7 @@ pm_restore_console:
 #       example: [color=#CC00CC]
 #
 #   arglist: A list of arguments from registers/stack addresses. See URL:
-#            https://www.kernel.org/doc/Documentation/trace/kprobetrace.txt
+#            https://www.kernel.org/doc/Documentation/trace/kprobetrace.rst
 #
 #       example: port=+36(%di):s32
 #
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 607ed8729c06..7a6214e9ae58 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -16,9 +16,7 @@ LDLIBS += -lcap -lelf -lrt -lpthread
 TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read
 all: $(TEST_CUSTOM_PROGS)
 
-$(TEST_CUSTOM_PROGS): urandom_read
-
-urandom_read: urandom_read.c
+$(TEST_CUSTOM_PROGS): $(OUTPUT)/%: %.c
         $(CC) -o $(TEST_CUSTOM_PROGS) -static $< -Wl,--build-id
 
 # Order correspond to 'make run_tests' order
diff --git a/tools/testing/selftests/cgroup/cgroup_util.c b/tools/testing/selftests/cgroup/cgroup_util.c
index b69bdeb4b9fe..1e9e3c470561 100644
--- a/tools/testing/selftests/cgroup/cgroup_util.c
+++ b/tools/testing/selftests/cgroup/cgroup_util.c
@@ -35,7 +35,7 @@ out:
         return len;
 }
 
-static ssize_t write_text(const char *path, char *buf, size_t len)
+static ssize_t write_text(const char *path, char *buf, ssize_t len)
 {
         int fd;
 
@@ -140,7 +140,7 @@ long cg_read_key_long(const char *cgroup, const char *control, const char *key)
 int cg_write(const char *cgroup, const char *control, char *buf)
 {
         char path[PATH_MAX];
-        size_t len = strlen(buf);
+        ssize_t len = strlen(buf);
 
         snprintf(path, sizeof(path), "%s/%s", cgroup, control);
 
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc
index 5ba73035e1d9..a0002563e9ee 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc
@@ -24,6 +24,14 @@ arm*)
   ARG2=%r1
   OFFS=4
 ;;
+ppc64*)
+  ARG2=%r4
+  OFFS=8
+;;
+ppc*)
+  ARG2=%r4
+  OFFS=4
+;;
 *)
   echo "Please implement other architecture here"
   exit_untested
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc
index 231bcd2c4eb5..d026ff4e562f 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc
@@ -34,6 +34,13 @@ arm*)
   GOODREG=%r0
   BADREG=%ax
 ;;
+ppc*)
+  GOODREG=%r3
+  BADREG=%msr
+;;
+*)
+  echo "Please implement other architecture here"
+  exit_untested
 esac
 
 test_goodarg() # Good-args
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/ife.json b/tools/testing/selftests/tc-testing/tc-tests/actions/ife.json
index de97e4ff705c..637ea0219617 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/actions/ife.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/ife.json
@@ -568,7 +568,7 @@
         "matchPattern": "action order [0-9]*: ife encode action pass.*type 0xED3E.*use tcindex 65535.*index 1",
         "matchCount": "1",
         "teardown": [
-            "$TC actions flush action skbedit"
+            "$TC actions flush action ife"
         ]
     },
     {