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| author | Andi Kleen <andi@firstfloor.org> | 2010-01-05 12:48:01 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-07 17:04:47 -0800 |
| commit | 1c205ae18db53ff72985dd79f3baaf2dbaba6db7 (patch) | |
| tree | ba2947326f34337b33c90391496b6e40089bc2ad | |
| parent | 265d2e2e31c5f6dc1b20ae1653a17fdba706f79e (diff) | |
| download | linux-3.10-1c205ae18db53ff72985dd79f3baaf2dbaba6db7.tar.gz linux-3.10-1c205ae18db53ff72985dd79f3baaf2dbaba6db7.tar.bz2 linux-3.10-1c205ae18db53ff72985dd79f3baaf2dbaba6db7.zip | |
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>
| -rw-r--r-- | fs/sysfs/file.c | 20 | ||||
| -rw-r--r-- | include/linux/sysfs.h | 14 |
2 files changed, 34 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); diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index cfa83083a2d..3e852658214 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -94,9 +94,12 @@ int __must_check sysfs_move_dir(struct kobject *kobj, int __must_check sysfs_create_file(struct kobject *kobj, const struct attribute *attr); +int __must_check sysfs_create_files(struct kobject *kobj, + const struct attribute **attr); int __must_check sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode); void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr); +void sysfs_remove_files(struct kobject *kobj, const struct attribute **attr); int __must_check sysfs_create_bin_file(struct kobject *kobj, const struct bin_attribute *attr); @@ -164,6 +167,12 @@ static inline int sysfs_create_file(struct kobject *kobj, return 0; } +static inline int sysfs_create_files(struct kobject *kobj, + const struct attribute **attr) +{ + return 0; +} + static inline int sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode) { @@ -175,6 +184,11 @@ static inline void sysfs_remove_file(struct kobject *kobj, { } +static inline void sysfs_remove_files(struct kobject *kobj, + const struct attribute **attr) +{ +} + static inline int sysfs_create_bin_file(struct kobject *kobj, const struct bin_attribute *attr) { |