dasharo/linux
0
0
Fork 0
mirror of https://github.com/Dasharo/linux.git synced 2026-03-06 15:25:10 -08:00
Code Issues Packages Projects Releases Wiki Activity

namespace: Use atomic64_inc_return() in alloc_mnt_ns()

Browse Source 
Use atomic64_inc_return(&ref) instead of atomic64_add_return(1, &ref)
to use optimized implementation and ease register pressure around
the primitive for targets that implement optimized variant.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Link: https://lore.kernel.org/r/20241007085303.48312-1-ubizjak@gmail.com
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Uros Bizjak
2024-10-07 10:52:37 +02:00
committed by Christian Brauner
parent 1e756248be
commit 0cb9c994e7
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
fs/namespace.c
View File

@@ -3901,7 +3901,7 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns, bool a
}
new_ns->ns.ops = &mntns_operations;
if (!anon)
new_ns->seq = atomic64_add_return(1, &mnt_ns_seq);
new_ns->seq = atomic64_inc_return(&mnt_ns_seq);
refcount_set(&new_ns->ns.count, 1);
refcount_set(&new_ns->passive, 1);
new_ns->mounts = RB_ROOT;