From 1bfba4e8ea0e555e3a0296051517d96253660ccc Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Mon, 26 Jun 2006 00:24:40 -0700 Subject: [PATCH] [PATCH] core: use list_move() This patch converts the combination of list_del(A) and list_add(A, B) to list_move(A, B). Cc: Greg Kroah-Hartman Cc: Ram Pai Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/base/power/resume.c | 6 ++---- drivers/base/power/suspend.c | 13 +++++-------- fs/dcache.c | 3 +-- fs/libfs.c | 10 ++++------ fs/namespace.c | 6 ++---- fs/pnode.c | 9 +++------ fs/sysfs/dir.c | 10 ++++------ mm/swap.c | 3 +-- 8 files changed, 22 insertions(+), 38 deletions(-) diff --git a/drivers/base/power/resume.c b/drivers/base/power/resume.c index 520679ce53..826093ef4c 100644 --- a/drivers/base/power/resume.c +++ b/drivers/base/power/resume.c @@ -53,8 +53,7 @@ void dpm_resume(void) struct device * dev = to_device(entry); get_device(dev); - list_del_init(entry); - list_add_tail(entry, &dpm_active); + list_move_tail(entry, &dpm_active); up(&dpm_list_sem); if (!dev->power.prev_state.event) @@ -101,8 +100,7 @@ void dpm_power_up(void) struct device * dev = to_device(entry); get_device(dev); - list_del_init(entry); - list_add_tail(entry, &dpm_active); + list_move_tail(entry, &dpm_active); resume_device(dev); put_device(dev); } diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c index 1a1fe43a30..69509e02f7 100644 --- a/drivers/base/power/suspend.c +++ b/drivers/base/power/suspend.c @@ -116,12 +116,10 @@ int device_suspend(pm_message_t state) /* Check if the device got removed */ if (!list_empty(&dev->power.entry)) { /* Move it to the dpm_off or dpm_off_irq list */ - if (!error) { - list_del(&dev->power.entry); - list_add(&dev->power.entry, &dpm_off); - } else if (error == -EAGAIN) { - list_del(&dev->power.entry); - list_add(&dev->power.entry, &dpm_off_irq); + if (!error) + list_move(&dev->power.entry, &dpm_off); + else if (error == -EAGAIN) { + list_move(&dev->power.entry, &dpm_off_irq); error = 0; } } @@ -139,8 +137,7 @@ int device_suspend(pm_message_t state) */ while (!list_empty(&dpm_off_irq)) { struct list_head * entry = dpm_off_irq.next; - list_del(entry); - list_add(entry, &dpm_off); + list_move(entry, &dpm_off); } dpm_resume(); } diff --git a/fs/dcache.c b/fs/dcache.c index 6aa635fbfa..48b44a714b 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -522,8 +522,7 @@ void shrink_dcache_sb(struct super_block * sb) dentry = list_entry(tmp, struct dentry, d_lru); if (dentry->d_sb != sb) continue; - list_del(tmp); - list_add(tmp, &dentry_unused); + list_move(tmp, &dentry_unused); } /* diff --git a/fs/libfs.c b/fs/libfs.c index fc785d8bef..ac02ea602c 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -149,10 +149,9 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir) /* fallthrough */ default: spin_lock(&dcache_lock); - if (filp->f_pos == 2) { - list_del(q); - list_add(q, &dentry->d_subdirs); - } + if (filp->f_pos == 2) + list_move(q, &dentry->d_subdirs); + for (p=q->next; p != &dentry->d_subdirs; p=p->next) { struct dentry *next; next = list_entry(p, struct dentry, d_u.d_child); @@ -164,8 +163,7 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir) return 0; spin_lock(&dcache_lock); /* next is still alive */ - list_del(q); - list_add(q, p); + list_move(q, p); p = q; filp->f_pos++; } diff --git a/fs/namespace.c b/fs/namespace.c index 866430bb02..b3ed212ea4 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -526,10 +526,8 @@ void umount_tree(struct vfsmount *mnt, int propagate, struct list_head *kill) { struct vfsmount *p; - for (p = mnt; p; p = next_mnt(p, mnt)) { - list_del(&p->mnt_hash); - list_add(&p->mnt_hash, kill); - } + for (p = mnt; p; p = next_mnt(p, mnt)) + list_move(&p->mnt_hash, kill); if (propagate) propagate_umount(kill); diff --git a/fs/pnode.c b/fs/pnode.c index 37b568ed0e..da42ee61c1 100644 --- a/fs/pnode.c +++ b/fs/pnode.c @@ -53,8 +53,7 @@ static int do_make_slave(struct vfsmount *mnt) if (master) { list_for_each_entry(slave_mnt, &mnt->mnt_slave_list, mnt_slave) slave_mnt->mnt_master = master; - list_del(&mnt->mnt_slave); - list_add(&mnt->mnt_slave, &master->mnt_slave_list); + list_move(&mnt->mnt_slave, &master->mnt_slave_list); list_splice(&mnt->mnt_slave_list, master->mnt_slave_list.prev); INIT_LIST_HEAD(&mnt->mnt_slave_list); } else { @@ -283,10 +282,8 @@ static void __propagate_umount(struct vfsmount *mnt) * umount the child only if the child has no * other children */ - if (child && list_empty(&child->mnt_mounts)) { - list_del(&child->mnt_hash); - list_add_tail(&child->mnt_hash, &mnt->mnt_hash); - } + if (child && list_empty(&child->mnt_mounts)) + list_move_tail(&child->mnt_hash, &mnt->mnt_hash); } } diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index 610b5bdbe7..61c42430cb 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -430,10 +430,9 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir) i++; /* fallthrough */ default: - if (filp->f_pos == 2) { - list_del(q); - list_add(q, &parent_sd->s_children); - } + if (filp->f_pos == 2) + list_move(q, &parent_sd->s_children); + for (p=q->next; p!= &parent_sd->s_children; p=p->next) { struct sysfs_dirent *next; const char * name; @@ -455,8 +454,7 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir) dt_type(next)) < 0) return 0; - list_del(q); - list_add(q, p); + list_move(q, p); p = q; filp->f_pos++; } diff --git a/mm/swap.c b/mm/swap.c index 03ae2076f9..990868afc1 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -86,8 +86,7 @@ int rotate_reclaimable_page(struct page *page) zone = page_zone(page); spin_lock_irqsave(&zone->lru_lock, flags); if (PageLRU(page) && !PageActive(page)) { - list_del(&page->lru); - list_add_tail(&page->lru, &zone->inactive_list); + list_move_tail(&page->lru, &zone->inactive_list); inc_page_state(pgrotated); } if (!test_clear_page_writeback(page)) -- 2.39.5