RE: [PATCH] fix NFSv4 acl detection on F39

[Ondrej Valousek]

Well, what if we try to create a decently sized stack buffer (say 256 chars) - 
in 99% we fit into that buffer (actually I can't image we would ever need 
more), and if we do not fit into that buffer we just return 1 (most likely some 
sort of acl is likely there).
That would allow for a nice and simple to read patch.


-----Original Message-----
From: Paul Eggert <eggert@cs.ucla.edu> 
Sent: Donnerstag, 4. Mai 2023 00:54
To: Ondrej Valousek <ondrej.valousek.xm@renesas.com>; bug-gnulib@gnu.org
Subject: Re: [PATCH] fix NFSv4 acl detection on F39

On 5/2/23 22:44, Ondrej Valousek wrote:
> What's the reason for doing that?
> I wanted to save syscalls, not to create more.

Yes, and the approach I suggested will save a syscall in 99.99% of the cases, 
as there will be just one llistxattr syscall where your approach has two. In a 
very few (practically zero?) cases there will be three or more syscalls, but 
that's OK.