fs/binfmt: Convert obsolete cputime type to nsecs

Use the new nsec based cputime accessors as part of the whole cputime
conversion from cputime_t to nsecs.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Wanpeng Li <wanpeng.li@hotmail.com>
Link: http://lkml.kernel.org/r/1485832191-26889-12-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

3 files changed, 20 insertions, 40 deletions

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 6d451936a858..e7bf01373bc4 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1411,8 +1411,6 @@ static void fill_note(struct memelfnote *note, const char *name, int type,
 static void fill_prstatus(struct elf_prstatus *prstatus,
 		struct task_struct *p, long signr)
 {
-	struct timeval tv;
-
 	prstatus->pr_info.si_signo = prstatus->pr_cursig = signr;
 	prstatus->pr_sigpend = p->pending.signal.sig[0];
 	prstatus->pr_sighold = p->blocked.sig[0];
@@ -1423,29 +1421,25 @@ static void fill_prstatus(struct elf_prstatus *prstatus,
 	prstatus->pr_pgrp = task_pgrp_vnr(p);
 	prstatus->pr_sid = task_session_vnr(p);
 	if (thread_group_leader(p)) {
-		struct task_cputime_t cputime;
+		struct task_cputime cputime;
 
 		/*
 		 * This is the record for the group leader.  It shows the
 		 * group-wide total, not its individual thread total.
 		 */
-		thread_group_cputime_t(p, &cputime);
-		cputime_to_timeval(cputime.utime, &prstatus->pr_utime);
-		cputime_to_timeval(cputime.stime, &prstatus->pr_stime);
+		thread_group_cputime(p, &cputime);
+		prstatus->pr_utime = ns_to_timeval(cputime.utime);
+		prstatus->pr_stime = ns_to_timeval(cputime.stime);
 	} else {
-		cputime_t utime, stime;
+		u64 utime, stime;
 
-		task_cputime_t(p, &utime, &stime);
-		cputime_to_timeval(utime, &prstatus->pr_utime);
-		cputime_to_timeval(stime, &prstatus->pr_stime);
+		task_cputime(p, &utime, &stime);
+		prstatus->pr_utime = ns_to_timeval(utime);
+		prstatus->pr_stime = ns_to_timeval(stime);
 	}
-	tv = ns_to_timeval(p->signal->cutime);
-	prstatus->pr_cutime.tv_sec = tv.tv_sec;
-	prstatus->pr_cutime.tv_usec = tv.tv_usec;
 
-	tv = ns_to_timeval(p->signal->cstime);
-	prstatus->pr_cstime.tv_sec = tv.tv_sec;
-	prstatus->pr_cstime.tv_usec = tv.tv_usec;
+	prstatus->pr_cutime = ns_to_timeval(p->signal->cutime);
+	prstatus->pr_cstime = ns_to_timeval(p->signal->cstime);
 }
 
 static int fill_psinfo(struct elf_prpsinfo *psinfo, struct task_struct *p,
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index e1f373460257..ffca4bbc3d63 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1342,21 +1342,21 @@ static void fill_prstatus(struct elf_prstatus *prstatus,
 	prstatus->pr_pgrp = task_pgrp_vnr(p);
 	prstatus->pr_sid = task_session_vnr(p);
 	if (thread_group_leader(p)) {
-		struct task_cputime_t cputime;
+		struct task_cputime cputime;
 
 		/*
 		 * This is the record for the group leader.  It shows the
 		 * group-wide total, not its individual thread total.
 		 */
-		thread_group_cputime_t(p, &cputime);
-		cputime_to_timeval(cputime.utime, &prstatus->pr_utime);
-		cputime_to_timeval(cputime.stime, &prstatus->pr_stime);
+		thread_group_cputime(p, &cputime);
+		prstatus->pr_utime = ns_to_timeval(cputime.utime);
+		prstatus->pr_stime = ns_to_timeval(cputime.stime);
 	} else {
-		cputime_t utime, stime;
+		u64 utime, stime;
 
-		task_cputime_t(p, &utime, &stime);
-		cputime_to_timeval(utime, &prstatus->pr_utime);
-		cputime_to_timeval(stime, &prstatus->pr_stime);
+		task_cputime(p, &utime, &stime);
+		prstatus->pr_utime = ns_to_timeval(utime);
+		prstatus->pr_stime = ns_to_timeval(stime);
 	}
 	prstatus->pr_cutime = ns_to_timeval(p->signal->cutime);
 	prstatus->pr_cstime = ns_to_timeval(p->signal->cstime);
diff --git a/fs/compat_binfmt_elf.c b/fs/compat_binfmt_elf.c
index 4d24d17bcfc1..504b3c3539dc 100644
--- a/fs/compat_binfmt_elf.c
+++ b/fs/compat_binfmt_elf.c
@@ -51,22 +51,8 @@
 #define elf_prstatus	compat_elf_prstatus
 #define elf_prpsinfo	compat_elf_prpsinfo
 
-/*
- * Compat version of cputime_to_compat_timeval, perhaps this
- * should be an inline in <linux/compat.h>.
- */
-static void cputime_to_compat_timeval(const cputime_t cputime,
-				      struct compat_timeval *value)
-{
-	struct timeval tv;
-	cputime_to_timeval(cputime, &tv);
-	value->tv_sec = tv.tv_sec;
-	value->tv_usec = tv.tv_usec;
-}
-
-#undef cputime_to_timeval
-#define cputime_to_timeval cputime_to_compat_timeval
-
+#undef ns_to_timeval
+#define ns_to_timeval ns_to_compat_timeval
 
 /*
  * To use this file, asm/elf.h must define compat_elf_check_arch.