posix_acl_to_cifs(9)

💅 posix_acl_to_cifs(9) 💅

okay so bestie, welcome to the Kernel API Manual — this one's a function page, and honestly it's giving "small but mighty" ✨

🌸 NAME 🌸

posix_acl_to_cifs — the glow-up machine that converts ACLs from POSIX ACL format into cifs</c> format 💖

✨ SYNOPSIS ✨

__u16 posix_acl_to_cifs (char *parm_data , const struct posix_acl *acl ,
       const int acl_type );

like, that's the whole signature, no cap 🔥

🎀 ARGUMENTS 🎀

• parm_data — the ACLs in cifs format, aka where the converted stuff is gonna land. this is the to side of the pipeline 🫶
• acl — the ACLs in POSIX ACL format, aka where we're pulling from. this is the from side 💅
• acl_type — the type of POSIX ACLs that are stored in acl. yes, it matters, don't skip it 🙈

⭐ RETURN ⭐

it hands you back the number of cifs ACL entries after conversion — that's the return value, and it's __u16, so plan accordingly 👑

🦋 SEE ALSO 🦋

• Kernel file ./fs/smb/client/cifssmb.c — that's where the magic lives, iykyk 📁
• cifs_init_posix_acl(9)
• cifs_to_posix_acl(9)
• cifs_init_ace(9)

fr fr go read those too, they're the rest of the friend group and they all ate 💀

and that's the whole page bestie, no filler, no crumbs left behind 🌈

later, legend — this came from ./fs/smb/client, dated October 2026, and yes the source line is lowkey the same as the footer, we love a consistent queen 👑💜