From a4c6e9961fcb9da54648d98978d33c6fdcb7bb45 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Wed, 28 Jul 2010 10:18:38 -0400 Subject: fsnotify: use _rcu functions for mark list traversal In preparation for srcu locking use all _rcu appropiete functions for mark list addition, removal, and traversal. The operations are still done under a spinlock at the end of this patch. Signed-off-by: Eric Paris --- fs/notify/inode_mark.c | 10 +++++----- fs/notify/vfsmount_mark.c | 10 +++++----- 2 files changed, 10 insertions(+), 10 deletions(-) (limited to 'fs/notify') diff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c index 83ce6db34039..455cb41c729b 100644 --- a/fs/notify/inode_mark.c +++ b/fs/notify/inode_mark.c @@ -67,7 +67,7 @@ void fsnotify_destroy_inode_mark(struct fsnotify_mark *mark) spin_lock(&inode->i_lock); - hlist_del_init(&mark->i.i_list); + hlist_del_init_rcu(&mark->i.i_list); mark->i.inode = NULL; /* @@ -92,7 +92,7 @@ void fsnotify_clear_marks_by_inode(struct inode *inode) spin_lock(&inode->i_lock); hlist_for_each_entry_safe(mark, pos, n, &inode->i_fsnotify_marks, i.i_list) { list_add(&mark->i.free_i_list, &free_list); - hlist_del_init(&mark->i.i_list); + hlist_del_init_rcu(&mark->i.i_list); fsnotify_get_mark(mark); } spin_unlock(&inode->i_lock); @@ -198,7 +198,7 @@ int fsnotify_add_inode_mark(struct fsnotify_mark *mark, /* is mark the first mark? */ if (hlist_empty(&inode->i_fsnotify_marks)) { - hlist_add_head(&mark->i.i_list, &inode->i_fsnotify_marks); + hlist_add_head_rcu(&mark->i.i_list, &inode->i_fsnotify_marks); goto out; } @@ -214,13 +214,13 @@ int fsnotify_add_inode_mark(struct fsnotify_mark *mark, if (mark->group < lmark->group) continue; - hlist_add_before(&mark->i.i_list, &lmark->i.i_list); + hlist_add_before_rcu(&mark->i.i_list, &lmark->i.i_list); goto out; } BUG_ON(last == NULL); /* mark should be the last entry. last is the current last entry */ - hlist_add_after(last, &mark->i.i_list); + hlist_add_after_rcu(last, &mark->i.i_list); out: fsnotify_recalc_inode_mask_locked(inode); spin_unlock(&inode->i_lock); diff --git a/fs/notify/vfsmount_mark.c b/fs/notify/vfsmount_mark.c index c4b3f14d2530..b7ae64030021 100644 --- a/fs/notify/vfsmount_mark.c +++ b/fs/notify/vfsmount_mark.c @@ -39,7 +39,7 @@ void fsnotify_clear_marks_by_mount(struct vfsmount *mnt) spin_lock(&mnt->mnt_root->d_lock); hlist_for_each_entry_safe(mark, pos, n, &mnt->mnt_fsnotify_marks, m.m_list) { list_add(&mark->m.free_m_list, &free_list); - hlist_del_init(&mark->m.m_list); + hlist_del_init_rcu(&mark->m.m_list); fsnotify_get_mark(mark); } spin_unlock(&mnt->mnt_root->d_lock); @@ -91,7 +91,7 @@ void fsnotify_destroy_vfsmount_mark(struct fsnotify_mark *mark) spin_lock(&mnt->mnt_root->d_lock); - hlist_del_init(&mark->m.m_list); + hlist_del_init_rcu(&mark->m.m_list); mark->m.mnt = NULL; fsnotify_recalc_vfsmount_mask_locked(mnt); @@ -156,7 +156,7 @@ int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark, /* is mark the first mark? */ if (hlist_empty(&mnt->mnt_fsnotify_marks)) { - hlist_add_head(&mark->m.m_list, &mnt->mnt_fsnotify_marks); + hlist_add_head_rcu(&mark->m.m_list, &mnt->mnt_fsnotify_marks); goto out; } @@ -172,13 +172,13 @@ int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark, if (mark->group < lmark->group) continue; - hlist_add_before(&mark->m.m_list, &lmark->m.m_list); + hlist_add_before_rcu(&mark->m.m_list, &lmark->m.m_list); goto out; } BUG_ON(last == NULL); /* mark should be the last entry. last is the current last entry */ - hlist_add_after(last, &mark->m.m_list); + hlist_add_after_rcu(last, &mark->m.m_list); out: fsnotify_recalc_vfsmount_mask_locked(mnt); spin_unlock(&mnt->mnt_root->d_lock); -- cgit v1.2.2