Re: [PATCH 1/2] proc: fix to check name length in proc_lookup_de()

From: Chao Yu
Date: Fri Feb 10 2023 - 20:13:32 EST


On 2023/2/3 7:41, Andrew Morton wrote:
[patch 1/2]: Alexey wasn't keen on the v1 patch. What changed?

I replied to Alexey's comments on v1, but still didn't get any
feedback, so I just rebase the code to last -next. Sorry, too rush
to missed to add change log on v2.


[patch 2/2]: What is the benefit from this change?

Block size is mismatch in between results of stat() and statfs(),
this patch tries to fix this issue.

stat /proc/
File: /proc/
Size: 0 Blocks: 0 IO Block: 1024 directory
Device: 14h/20d Inode: 1 Links: 310
Access: (0555/dr-xr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2023-01-28 23:14:20.491937242 +0800
Modify: 2023-01-28 23:14:20.491937242 +0800
Change: 2023-01-28 23:14:20.491937242 +0800
Birth: -

stat -f /proc/
File: "/proc/"
ID: 0 Namelen: 255 Type: proc
Block size: 4096 Fundamental block size: 4096
Blocks: Total: 0 Free: 0 Available: 0
Inodes: Total: 0 Free: 0