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pidfs: move setting flags into pidfs_alloc_file()

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Instead od adding it into __pidfd_prepare() place it where the actual
file allocation happens and update the outdated comment.

Link: https://lore.kernel.org/r/20250305-work-pidfs-kill_on_last_close-v3-3-c8c3d8361705@kernel.org
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner 2025-03-05 11:08:13 +01:00
parent b573bf6f69
commit 3155a19407
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GPG key ID: 91C61BC06578DCA2
2 changed files with 4 additions and 5 deletions
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5
kernel/fork.c
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@ -2042,11 +2042,6 @@ static int __pidfd_prepare(struct pid *pid, unsigned int flags, struct file **re
if (IS_ERR(pidfd_file))
return PTR_ERR(pidfd_file);
/*
* anon_inode_getfile() ignores everything outside of the
* O_ACCMODE | O_NONBLOCK mask, set PIDFD_THREAD manually.
*/
pidfd_file->f_flags |= (flags & PIDFD_THREAD);
*ret = pidfd_file;
return take_fd(pidfd);
}