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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

8
fs/jffs2/build.c
View file

@ -17,6 +17,7 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/mtd/mtd.h>
#include <linux/mm.h> /* kvfree() */
#include "nodelist.h"
static void jffs2_build_remove_unlinked_inode(struct jffs2_sb_info *,
@ -383,12 +384,7 @@ int jffs2_do_mount_fs(struct jffs2_sb_info *c)
return 0;
out_free:
#ifndef __ECOS
if (jffs2_blocks_use_vmalloc(c))
vfree(c->blocks);
else
#endif
kfree(c->blocks);
kvfree(c->blocks);
return ret;
}

5
fs/jffs2/fs.c
View file

@ -596,10 +596,7 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
out_root:
jffs2_free_ino_caches(c);
jffs2_free_raw_node_refs(c);
if (jffs2_blocks_use_vmalloc(c))
vfree(c->blocks);
else
kfree(c->blocks);
kvfree(c->blocks);
out_inohash:
jffs2_clear_xattr_subsystem(c);
kfree(c->inocache_list);

5
fs/jffs2/super.c
View file

@ -331,10 +331,7 @@ static void jffs2_put_super (struct super_block *sb)
jffs2_free_ino_caches(c);
jffs2_free_raw_node_refs(c);
if (jffs2_blocks_use_vmalloc(c))
vfree(c->blocks);
else
kfree(c->blocks);
kvfree(c->blocks);
jffs2_flash_cleanup(c);
kfree(c->inocache_list);
jffs2_clear_xattr_subsystem(c);