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pidfs: move O_RDWR into pidfs_alloc_file()

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Since all pidfds must be O_RDWR currently enfore that directly in the
file allocation function itself instead of letting callers specify it.

Link: https://lore.kernel.org/20250414-work-coredump-v2-1-685bf231f828@kernel.org
Tested-by: Luca Boccassi <luca.boccassi@gmail.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner 2025-04-14 15:55:05 +02:00
parent e1b477c213
commit c57f07b235
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fs/pidfs.c
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@ -892,6 +892,7 @@ struct file *pidfs_alloc_file(struct pid *pid, unsigned int flags)
return ERR_PTR(-ESRCH);
flags &= ~PIDFD_STALE;
flags |= O_RDWR;
pidfd_file = dentry_open(&path, flags, current_cred());
/* Raise PIDFD_THREAD explicitly as do_dentry_open() strips it. */
if (!IS_ERR(pidfd_file))