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ovl: use posix acl api

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Now that posix acls have a proper api us it to copy them.

All filesystems that can serve as lower or upper layers for overlayfs
have gained support for the new posix acl api in previous patches.
So switch all internal overlayfs codepaths for copying posix acls to the
new posix acl api.

Acked-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
This commit is contained in:
Christian Brauner
2022-09-22 17:17:21 +02:00
committed by Christian Brauner (Microsoft)
parent 0e64185732
commit 31acceb975
7 changed files with 58 additions and 30 deletions
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6
include/linux/xattr.h
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@@ -22,6 +22,12 @@
struct inode;
struct dentry;
static inline bool is_posix_acl_xattr(const char *name)
{
return (strcmp(name, XATTR_NAME_POSIX_ACL_ACCESS) == 0) ||
(strcmp(name, XATTR_NAME_POSIX_ACL_DEFAULT) == 0);
}
/*
* struct xattr_handler: When @name is set, match attributes with exactly that
* name. When @prefix is set instead, match attributes with that prefix and