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Commit bde8bd8a authored by Sasikantha babu's avatar Sasikantha babu Committed by Linus Torvalds
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mm/vmstat.c: remove debug fs entries on failure of file creation and made... 


mm/vmstat.c: remove debug fs entries on failure of file creation and made extfrag_debug_root dentry local

Remove debug fs files and directory on failure.  Since no one is using
"extfrag_debug_root" dentry outside of extfrag_debug_init(), make it
local to the function.

Signed-off-by: default avatarSasikantha babu <sasikanth.v19@gmail.com>
Acked-by: default avatarDavid Rientjes <rientjes@google.com>
Acked-by: default avatarMel Gorman <mel@csn.ul.ie>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 7edc8b0a

mm/vmstat.c

+7 −3
Original line number Diff line number Diff line
@@ -1223,7 +1223,6 @@ module_init(setup_vmstat) 
#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_COMPACTION)

#include <linux/debugfs.h>



static struct dentry *extfrag_debug_root;



/*

 * Return an index indicating how much of the available free memory is
@@ -1361,19 +1360,24 @@ static const struct file_operations extfrag_file_ops = { 


static int __init extfrag_debug_init(void)

{

	struct dentry *extfrag_debug_root;



	extfrag_debug_root = debugfs_create_dir("extfrag", NULL);

	if (!extfrag_debug_root)

		return -ENOMEM;



	if (!debugfs_create_file("unusable_index", 0444,

			extfrag_debug_root, NULL, &unusable_file_ops))

		return -ENOMEM;

		goto fail;



	if (!debugfs_create_file("extfrag_index", 0444,

			extfrag_debug_root, NULL, &extfrag_file_ops))

		return -ENOMEM;

		goto fail;



	return 0;

fail:

	debugfs_remove_recursive(extfrag_debug_root);

	return -ENOMEM;

}



module_init(extfrag_debug_init);