diff options
author | Tejun Heo <htejun@gmail.com> | 2007-06-14 04:27:24 +0900 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-07-11 16:09:09 -0700 |
commit | a0edd7c848945a75e2f41673f43bc37d0a5fed15 (patch) | |
tree | c74ea7d7dbc814faef126f97601a16c7118b3099 /fs/sysfs/inode.c | |
parent | fb6896da37f19be4b75154c14d1cd79231255b17 (diff) |
sysfs: move sysfs_drop_dentry() to dir.c and make it static
After add/remove path restructuring, the only user of
sysfs_drop_dentry() is sysfs_addrm_finish(). Move sysfs_drop_dentry()
to dir.c and make it static.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/sysfs/inode.c')
-rw-r--r-- | fs/sysfs/inode.c | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c index f95966847a8..3756e152285 100644 --- a/fs/sysfs/inode.c +++ b/fs/sysfs/inode.c @@ -197,62 +197,6 @@ void sysfs_instantiate(struct dentry *dentry, struct inode *inode) d_instantiate(dentry, inode); } -/** - * sysfs_drop_dentry - drop dentry for the specified sysfs_dirent - * @sd: target sysfs_dirent - * - * Drop dentry for @sd. @sd must have been unlinked from its - * parent on entry to this function such that it can't be looked - * up anymore. - * - * @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) -{ - struct dentry *dentry = NULL; - struct inode *inode; - - /* We're not holding a reference to ->s_dentry dentry but the - * field will stay valid as long as sysfs_assoc_lock is held. - */ - spin_lock(&sysfs_assoc_lock); - spin_lock(&dcache_lock); - - /* drop dentry if it's there and dput() didn't kill it yet */ - if (sd->s_dentry && sd->s_dentry->d_inode) { - dentry = dget_locked(sd->s_dentry); - spin_lock(&dentry->d_lock); - __d_drop(dentry); - spin_unlock(&dentry->d_lock); - } - - spin_unlock(&dcache_lock); - spin_unlock(&sysfs_assoc_lock); - - dput(dentry); - /* XXX: unpin if directory, this will go away soon */ - if (sysfs_type(sd) == SYSFS_DIR) - dput(dentry); - - /* adjust nlink and update timestamp */ - inode = ilookup(sysfs_sb, sd->s_ino); - if (inode) { - mutex_lock(&inode->i_mutex); - - inode->i_ctime = CURRENT_TIME; - drop_nlink(inode); - if (sysfs_type(sd) == SYSFS_DIR) - drop_nlink(inode); - - mutex_unlock(&inode->i_mutex); - iput(inode); - } -} - int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name) { struct sysfs_addrm_cxt acxt; |