diff options
| -rw-r--r-- | fs/sysfs/dir.c | 19 | ||||
| -rw-r--r-- | fs/sysfs/inode.c | 16 | ||||
| -rw-r--r-- | fs/sysfs/symlink.c | 6 | ||||
| -rw-r--r-- | fs/sysfs/sysfs.h | 3 |
4 files changed, 21 insertions, 23 deletions
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index 31b6cf30636..1b5643407a9 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -15,8 +15,7 @@ #include "sysfs.h" DECLARE_RWSEM(sysfs_rename_sem); -spinlock_t sysfs_lock = SPIN_LOCK_UNLOCKED; -spinlock_t kobj_sysfs_assoc_lock = SPIN_LOCK_UNLOCKED; +spinlock_t sysfs_assoc_lock = SPIN_LOCK_UNLOCKED; static spinlock_t sysfs_ino_lock = SPIN_LOCK_UNLOCKED; static DEFINE_IDA(sysfs_ino_ida); @@ -236,10 +235,10 @@ static void sysfs_d_iput(struct dentry * dentry, struct inode * inode) struct sysfs_dirent * sd = dentry->d_fsdata; if (sd) { - /* sd->s_dentry is protected with sysfs_lock. This - * allows sysfs_drop_dentry() to dereference it. + /* sd->s_dentry is protected with sysfs_assoc_lock. + * This allows sysfs_drop_dentry() to dereference it. */ - spin_lock(&sysfs_lock); + spin_lock(&sysfs_assoc_lock); /* The dentry might have been deleted or another * lookup could have happened updating sd->s_dentry to @@ -248,7 +247,7 @@ static void sysfs_d_iput(struct dentry * dentry, struct inode * inode) */ if (sd->s_dentry == dentry) sd->s_dentry = NULL; - spin_unlock(&sysfs_lock); + spin_unlock(&sysfs_assoc_lock); sysfs_put(sd); } iput(inode); @@ -298,9 +297,9 @@ static void sysfs_attach_dentry(struct sysfs_dirent *sd, struct dentry *dentry) dentry->d_fsdata = sysfs_get(sd); /* protect sd->s_dentry against sysfs_d_iput */ - spin_lock(&sysfs_lock); + spin_lock(&sysfs_assoc_lock); sd->s_dentry = dentry; - spin_unlock(&sysfs_lock); + spin_unlock(&sysfs_assoc_lock); d_rehash(dentry); } @@ -603,9 +602,9 @@ void sysfs_remove_dir(struct kobject * kobj) { struct sysfs_dirent *sd = kobj->sd; - spin_lock(&kobj_sysfs_assoc_lock); + spin_lock(&sysfs_assoc_lock); kobj->sd = NULL; - spin_unlock(&kobj_sysfs_assoc_lock); + spin_unlock(&sysfs_assoc_lock); __sysfs_remove_dir(sd); } diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c index 1be853706e9..e4c23939fb3 100644 --- a/fs/sysfs/inode.c +++ b/fs/sysfs/inode.c @@ -211,11 +211,11 @@ void sysfs_instantiate(struct dentry *dentry, struct inode *inode) * parent on entry to this function such that it can't be looked * up anymore. * - * @sd->s_dentry which is protected with sysfs_lock points to the - * currently associated dentry but we're not holding a reference - * to it and racing with dput(). Grab dcache_lock and verify - * dentry before dropping it. If @sd->s_dentry is NULL or dput() - * beats us, no need to bother. + * @sd->s_dentry which is protected with sysfs_assoc_lock points + * to the currently associated dentry but we're not holding a + * reference to it and racing with dput(). Grab dcache_lock and + * verify dentry before dropping it. If @sd->s_dentry is NULL or + * dput() beats us, no need to bother. */ void sysfs_drop_dentry(struct sysfs_dirent *sd) { @@ -224,9 +224,9 @@ void sysfs_drop_dentry(struct sysfs_dirent *sd) struct inode *inode; /* We're not holding a reference to ->s_dentry dentry but the - * field will stay valid as long as sysfs_lock is held. + * field will stay valid as long as sysfs_assoc_lock is held. */ - spin_lock(&sysfs_lock); + spin_lock(&sysfs_assoc_lock); spin_lock(&dcache_lock); /* drop dentry if it's there and dput() didn't kill it yet */ @@ -238,7 +238,7 @@ void sysfs_drop_dentry(struct sysfs_dirent *sd) } spin_unlock(&dcache_lock); - spin_unlock(&sysfs_lock); + spin_unlock(&sysfs_assoc_lock); dput(dentry); /* XXX: unpin if directory, this will go away soon */ diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c index 43cc5222f13..cbd95a4109d 100644 --- a/fs/sysfs/symlink.c +++ b/fs/sysfs/symlink.c @@ -82,12 +82,12 @@ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char return -EFAULT; /* target->sd can go away beneath us but is protected with - * kobj_sysfs_assoc_lock. Fetch target_sd from it. + * sysfs_assoc_lock. Fetch target_sd from it. */ - spin_lock(&kobj_sysfs_assoc_lock); + spin_lock(&sysfs_assoc_lock); if (target->sd) target_sd = sysfs_get(target->sd); - spin_unlock(&kobj_sysfs_assoc_lock); + spin_unlock(&sysfs_assoc_lock); if (!target_sd) return -ENOENT; diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h index 27a5f4b4e3b..457267721f4 100644 --- a/fs/sysfs/sysfs.h +++ b/fs/sysfs/sysfs.h @@ -81,8 +81,7 @@ extern void sysfs_remove_subdir(struct sysfs_dirent *sd); extern void sysfs_drop_dentry(struct sysfs_dirent *sd); extern int sysfs_setattr(struct dentry *dentry, struct iattr *iattr); -extern spinlock_t sysfs_lock; -extern spinlock_t kobj_sysfs_assoc_lock; +extern spinlock_t sysfs_assoc_lock; extern struct rw_semaphore sysfs_rename_sem; extern struct super_block * sysfs_sb; extern const struct file_operations sysfs_dir_operations; |