From ff7c4ea11a05c886f018fff4a4d4f4d68d951e25 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 13 Nov 2025 11:18:32 +1100 Subject: VFS: add start_creating_killable() and start_removing_killable() These are similar to start_creating() and start_removing(), but allow a fatal signal to abort waiting for the lock. They are used in btrfs for subvol creation and removal. btrfs_may_create() no longer needs IS_DEADDIR() and start_creating_killable() includes that check. Reviewed-by: Amir Goldstein Reviewed-by: Jeff Layton Signed-off-by: NeilBrown Link: https://patch.msgid.link/20251113002050.676694-10-neilb@ownmail.net Tested-by: syzbot@syzkaller.appspotmail.com Signed-off-by: Christian Brauner --- include/linux/namei.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/linux/namei.h b/include/linux/namei.h index 7e916e9d7726..e5cff89679df 100644 --- a/include/linux/namei.h +++ b/include/linux/namei.h @@ -92,6 +92,12 @@ struct dentry *start_creating(struct mnt_idmap *idmap, struct dentry *parent, struct qstr *name); struct dentry *start_removing(struct mnt_idmap *idmap, struct dentry *parent, struct qstr *name); +struct dentry *start_creating_killable(struct mnt_idmap *idmap, + struct dentry *parent, + struct qstr *name); +struct dentry *start_removing_killable(struct mnt_idmap *idmap, + struct dentry *parent, + struct qstr *name); struct dentry *start_creating_noperm(struct dentry *parent, struct qstr *name); struct dentry *start_removing_noperm(struct dentry *parent, struct qstr *name); struct dentry *start_removing_dentry(struct dentry *parent, -- cgit v1.2.3