Re: [PATCH v2 19/21] livepatch: Convert timeouts to secs_to_jiffies()

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Le 15/11/2024 à 22:26, Easwar Hariharan a écrit :
[Vous ne recevez pas souvent de courriers de eahariha@xxxxxxxxxxxxxxxxxxx. Découvrez pourquoi ceci est important à https://aka.ms/LearnAboutSenderIdentification ]

Changes made with the following Coccinelle rules:

@@ constant C; @@

- msecs_to_jiffies(C * 1000)
+ secs_to_jiffies(C)

@@ constant C; @@

- msecs_to_jiffies(C * MSEC_PER_SEC)
+ secs_to_jiffies(C)

Signed-off-by: Easwar Hariharan <eahariha@xxxxxxxxxxxxxxxxxxx>
---
  samples/livepatch/livepatch-callbacks-busymod.c |  2 +-
  samples/livepatch/livepatch-shadow-fix1.c       |  2 +-
  samples/livepatch/livepatch-shadow-mod.c        | 10 +++++-----
  3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/samples/livepatch/livepatch-callbacks-busymod.c b/samples/livepatch/livepatch-callbacks-busymod.c
index 378e2d40271a9717d09eff51d3d3612c679736fc..d0fd801a7c21b7d7939c29d83f9d993badcc9aba 100644
--- a/samples/livepatch/livepatch-callbacks-busymod.c
+++ b/samples/livepatch/livepatch-callbacks-busymod.c
@@ -45,7 +45,7 @@ static int livepatch_callbacks_mod_init(void)
  {
         pr_info("%s\n", __func__);
         schedule_delayed_work(&work,
-               msecs_to_jiffies(1000 * 0));
+               secs_to_jiffies(0));

Using secs_to_jiffies() is pointless, 0 is universal, should become schedule_delayed_work(&work, 0);

         return 0;
  }

diff --git a/samples/livepatch/livepatch-shadow-fix1.c b/samples/livepatch/livepatch-shadow-fix1.c
index 6701641bf12d454a770e49abeeb0dea92560e55e..948ea1f5760fed2fa27baf478c97cf98ad5c99a8 100644
--- a/samples/livepatch/livepatch-shadow-fix1.c
+++ b/samples/livepatch/livepatch-shadow-fix1.c
@@ -73,7 +73,7 @@ static struct dummy *livepatch_fix1_dummy_alloc(void)
                 return NULL;

         d->jiffies_expire = jiffies +
-               msecs_to_jiffies(1000 * EXPIRE_PERIOD);
+               secs_to_jiffies(EXPIRE_PERIOD);

         /*
          * Patch: save the extra memory location into a SV_LEAK shadow
diff --git a/samples/livepatch/livepatch-shadow-mod.c b/samples/livepatch/livepatch-shadow-mod.c
index 7e753b0d2fa611524c9e2adbe02c8fa3e9b6015e..79296e6ccb119f521e86a121623855d841c9fc5e 100644
--- a/samples/livepatch/livepatch-shadow-mod.c
+++ b/samples/livepatch/livepatch-shadow-mod.c
@@ -102,7 +102,7 @@ static __used noinline struct dummy *dummy_alloc(void)
                 return NULL;

         d->jiffies_expire = jiffies +
-               msecs_to_jiffies(1000 * EXPIRE_PERIOD);
+               secs_to_jiffies(EXPIRE_PERIOD);

Should fit on a single line, avoid multiple lines when possible.


         /* Oops, forgot to save leak! */
         leak = kzalloc(sizeof(*leak), GFP_KERNEL);
@@ -153,7 +153,7 @@ static void alloc_work_func(struct work_struct *work)
         mutex_unlock(&dummy_list_mutex);

         schedule_delayed_work(&alloc_dwork,
-               msecs_to_jiffies(1000 * ALLOC_PERIOD));
+               secs_to_jiffies(ALLOC_PERIOD));

Should fit on a single line, avoid multiple lines when possible.


  }

  /*
@@ -185,15 +185,15 @@ static void cleanup_work_func(struct work_struct *work)
         mutex_unlock(&dummy_list_mutex);

         schedule_delayed_work(&cleanup_dwork,
-               msecs_to_jiffies(1000 * CLEANUP_PERIOD));
+               secs_to_jiffies(CLEANUP_PERIOD));

Should fit on a single line, avoid multiple lines when possible.


  }

  static int livepatch_shadow_mod_init(void)
  {
         schedule_delayed_work(&alloc_dwork,
-               msecs_to_jiffies(1000 * ALLOC_PERIOD));
+               secs_to_jiffies(ALLOC_PERIOD));

Should fit on a single line, avoid multiple lines when possible.


         schedule_delayed_work(&cleanup_dwork,
-               msecs_to_jiffies(1000 * CLEANUP_PERIOD));
+               secs_to_jiffies(CLEANUP_PERIOD));

Should fit on a single line, avoid multiple lines when possible.



         return 0;
  }

--
2.34.1




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