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tree wide: use kvfree() than conditional kfree()/vfree()

Browse source 
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 <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Acked-by: Jan Kara <[email protected]>
Acked-by: Russell King <[email protected]>
Reviewed-by: Andreas Dilger <[email protected]>
Acked-by: "Rafael J. Wysocki" <[email protected]>
Acked-by: David Rientjes <[email protected]>
Cc: "Luck, Tony" <[email protected]>
Cc: Oleg Drokin <[email protected]>
Cc: Boris Petkov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Tetsuo Handa 2016-01-22 15:11:02 -08:00 • committed by Linus Torvalds
commit 1d5cfdb076
17 changed files with 36 additions and 103 deletions
Download patch file Download diff file Expand all files Collapse all files

11
ipc/util.c
View file

@ -414,17 +414,12 @@ void *ipc_alloc(int size)
/**
* 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);
}
/**