Thread (77 messages) 77 messages, 6 authors, 2025-11-18
STALE195d REVIEWED: 18 (18M)
Revisions (3)
  1. v2 [diff vs current]
  2. v3 current
  3. v4 [diff vs current]

[PATCH v3 21/50] debugfs: remove duplicate checks in callers of start_creating()

From: Al Viro <viro@zeniv.linux.org.uk>
Date: 2025-11-11 06:55:27
Also in: bpf, linux-efi, linux-fsdevel, linux-mm, linux-usb, ocfs2-devel, selinux
Subsystem: driver core, kobjects, debugfs and sysfs, filesystems (vfs and infrastructure), the rest · Maintainers: Greg Kroah-Hartman, "Rafael J. Wysocki", Danilo Krummrich, Alexander Viro, Christian Brauner, Linus Torvalds

we'd already verified that DEBUGFS_ALLOW_API was there in
start_creating() - it would've failed otherwise

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/debugfs/inode.c | 15 ---------------
 1 file changed, 15 deletions(-)
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index 682120fdbb17..25a554331ac4 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -433,11 +433,6 @@ static struct dentry *__debugfs_create_file(const char *name, umode_t mode,
 	if (IS_ERR(dentry))
 		return dentry;
 
-	if (!(debugfs_allow & DEBUGFS_ALLOW_API)) {
-		failed_creating(dentry);
-		return ERR_PTR(-EPERM);
-	}
-
 	inode = debugfs_get_inode(dentry->d_sb);
 	if (unlikely(!inode)) {
 		pr_err("out of free dentries, can not create file '%s'\n",
@@ -583,11 +578,6 @@ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent)
 	if (IS_ERR(dentry))
 		return dentry;
 
-	if (!(debugfs_allow & DEBUGFS_ALLOW_API)) {
-		failed_creating(dentry);
-		return ERR_PTR(-EPERM);
-	}
-
 	inode = debugfs_get_inode(dentry->d_sb);
 	if (unlikely(!inode)) {
 		pr_err("out of free dentries, can not create directory '%s'\n",
@@ -630,11 +620,6 @@ struct dentry *debugfs_create_automount(const char *name,
 	if (IS_ERR(dentry))
 		return dentry;
 
-	if (!(debugfs_allow & DEBUGFS_ALLOW_API)) {
-		failed_creating(dentry);
-		return ERR_PTR(-EPERM);
-	}
-
 	inode = debugfs_get_inode(dentry->d_sb);
 	if (unlikely(!inode)) {
 		pr_err("out of free dentries, can not create automount '%s'\n",
-- 
2.47.3

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