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proc: delete redundant subset=pid check

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Two checks in lookup and readdir code should be enough to not have third
check in open code.

Can't open what can't be looked up?

Link: https://lkml.kernel.org/r/YFYYwIBIkytqnkxP@localhost.localdomain
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Alexey Gladkov <gladkov.alexey@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexey Dobriyan 2021-05-06 18:02:18 -07:00 committed by Linus Torvalds
parent d4455faccd
commit 1dcdd7ef96
1 changed files with 0 additions and 4 deletions
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4
fs/proc/inode.c
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@ -483,7 +483,6 @@ proc_reg_get_unmapped_area(struct file *file, unsigned long orig_addr,
static int proc_reg_open(struct inode *inode, struct file *file)
{
struct proc_fs_info *fs_info = proc_sb_info(inode->i_sb);
struct proc_dir_entry *pde = PDE(inode);
int rv = 0;
typeof_member(struct proc_ops, proc_open) open;
@ -497,9 +496,6 @@ static int proc_reg_open(struct inode *inode, struct file *file)
return rv;
}
if (fs_info->pidonly == PROC_PIDONLY_ON)
return -ENOENT;
/*
* Ensure that
* 1) PDE's ->release hook will be called no matter what