tree wide: use kvfree() than conditional kfree()/vfree()
There are many locations that do
if (memory_was_allocated_by_vmalloc)
vfree(ptr);
else
kfree(ptr);
but kvfree() can handle both kmalloc()ed memory and vmalloc()ed memory
using is_vmalloc_addr(). Unless callers have special reasons, we can
replace this branch with kvfree(). Please check and reply if you found
problems.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Jan Kara <jack@suse.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Acked-by: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Acked-by: David Rientjes <rientjes@google.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Oleg Drokin <oleg.drokin@intel.com>
Cc: Boris Petkov <bp@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/ipc/sem.c b/ipc/sem.c
index b471e5a..cddd5b5 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -1493,7 +1493,7 @@
wake_up_sem_queue_do(&tasks);
out_free:
if (sem_io != fast_sem_io)
- ipc_free(sem_io, sizeof(ushort)*nsems);
+ ipc_free(sem_io);
return err;
}
diff --git a/ipc/util.c b/ipc/util.c
index 0f401d9..798cad1 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -414,17 +414,12 @@
/**
* ipc_free - free ipc space
* @ptr: pointer returned by ipc_alloc
- * @size: size of block
*
- * Free a block created with ipc_alloc(). The caller must know the size
- * used in the allocation call.
+ * Free a block created with ipc_alloc().
*/
-void ipc_free(void *ptr, int size)
+void ipc_free(void *ptr)
{
- if (size > PAGE_SIZE)
- vfree(ptr);
- else
- kfree(ptr);
+ kvfree(ptr);
}
/**
diff --git a/ipc/util.h b/ipc/util.h
index 3a8a5a0..51f7ca5 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -118,7 +118,7 @@
* both function can sleep
*/
void *ipc_alloc(int size);
-void ipc_free(void *ptr, int size);
+void ipc_free(void *ptr);
/*
* For allocation that need to be freed by RCU.