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| author |   Tejun Heo <htejun@gmail.com> | 2007-06-14 04:27:23 +0900 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2007-07-11 16:09:08 -0700 |
| commit | 5f9953237f684ea1778adb9d26162da00b282225 (patch) | |
| tree | 962bbe5fe2483876caa74943875cbef432db6945 /fs/sysfs/inode.c | |
| parent | sysfs: make kobj point to sysfs_dirent instead of dentry (diff) | |
| download | linux-dev-5f9953237f684ea1778adb9d26162da00b282225.tar.xz linux-dev-5f9953237f684ea1778adb9d26162da00b282225.zip | |
sysfs: consolidate sysfs spinlocks
Replace sysfs_lock and kobj_sysfs_assoc_lock with sysfs_assoc_lock.
sysfs_lock was originally to be used to protect sysfs_dirent tree but
mutex seems better choice, so there is no reason to keep sysfs_lock
separate. Merge the two spinlocks into one.
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 | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c index 1be853706e99..e4c23939fb36 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 */ |