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namespace: convert open_tree_attr() to FD_PREPARE() 

Link: https://patch.msgid.link/20251123-work-fd-prepare-v4-6-b6efa1706cfd@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner 2025-11-23 17:33:24 +01:00
parent 542a406543
commit 416b0d1659
No known key found for this signature in database
GPG Key ID: 91C61BC06578DCA2
1 changed files with 6 additions and 13 deletions
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19
fs/namespace.c
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@ -5023,19 +5023,17 @@ SYSCALL_DEFINE5(open_tree_attr, int, dfd, const char __user *, filename,
unsigned, flags, struct mount_attr __user *, uattr,
size_t, usize)
{
struct file __free(fput) *file = NULL;
int fd;
if (!uattr && usize)
return -EINVAL;
file = vfs_open_tree(dfd, filename, flags);
if (IS_ERR(file))
return PTR_ERR(file);
FD_PREPARE(fdf, flags, vfs_open_tree(dfd, filename, flags));
if (fdf.err)
return fdf.err;
if (uattr) {
int ret;
struct mount_kattr kattr = {};
struct file *file = fd_prepare_file(fdf);
int ret;
if (flags & OPEN_TREE_CLONE)
kattr.kflags = MOUNT_KATTR_IDMAP_REPLACE;
@ -5051,12 +5049,7 @@ SYSCALL_DEFINE5(open_tree_attr, int, dfd, const char __user *, filename,
return ret;
}
fd = get_unused_fd_flags(flags & O_CLOEXEC);
if (fd < 0)
return fd;
fd_install(fd, no_free_ptr(file));
return fd;
return fd_publish(fdf);
}
int show_path(struct seq_file *m, struct dentry *root)