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authorAndi Kleen <andi@firstfloor.org>2010-01-05 12:48:01 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2010-03-07 17:04:47 -0800
commit1c205ae18db53ff72985dd79f3baaf2dbaba6db7 (patch)
treeba2947326f34337b33c90391496b6e40089bc2ad /fs/sysfs/file.c
parent265d2e2e31c5f6dc1b20ae1653a17fdba706f79e (diff)
downloadvexpress-lsk-1c205ae18db53ff72985dd79f3baaf2dbaba6db7.tar.gz
sysfs: Add sysfs_add/remove_files utility functions
Adding/Removing a whole array of attributes is very common. Add a standard utility function to do this with a simple function call, instead of requiring drivers to open code this. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/sysfs/file.c')
-rw-r--r--fs/sysfs/file.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index dc30d9e3168..50b725bcc3f 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -542,6 +542,18 @@ int sysfs_create_file(struct kobject * kobj, const struct attribute * attr)
}
+int sysfs_create_files(struct kobject *kobj, const struct attribute **ptr)
+{
+ int err = 0;
+ int i;
+
+ for (i = 0; ptr[i] && !err; i++)
+ err = sysfs_create_file(kobj, ptr[i]);
+ if (err)
+ while (--i >= 0)
+ sysfs_remove_file(kobj, ptr[i]);
+ return err;
+}
/**
* sysfs_add_file_to_group - add an attribute file to a pre-existing group.
@@ -614,6 +626,12 @@ void sysfs_remove_file(struct kobject * kobj, const struct attribute * attr)
sysfs_hash_and_remove(kobj->sd, attr->name);
}
+void sysfs_remove_files(struct kobject * kobj, const struct attribute **ptr)
+{
+ int i;
+ for (i = 0; ptr[i]; i++)
+ sysfs_remove_file(kobj, ptr[i]);
+}
/**
* sysfs_remove_file_from_group - remove an attribute file from a group.
@@ -732,3 +750,5 @@ EXPORT_SYMBOL_GPL(sysfs_schedule_callback);
EXPORT_SYMBOL_GPL(sysfs_create_file);
EXPORT_SYMBOL_GPL(sysfs_remove_file);
+EXPORT_SYMBOL_GPL(sysfs_remove_files);
+EXPORT_SYMBOL_GPL(sysfs_create_files);