GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

fs: introduce two inode i_{u,g}id initialization helpers

Browse source 
Give filesystem two little helpers that do the right thing when
initializing the i_uid and i_gid fields on idmapped and non-idmapped
mounts. Filesystems shouldn't have to be concerned with too many
details.

Link: https://lore.kernel.org/r/20210320122623.599086-5-christian.brauner@ubuntu.com
Inspired-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Christian Brauner 2021-03-20 13:26:24 +01:00
parent 8e5389132a
commit db998553cf
No known key found for this signature in database
GPG key ID: 91C61BC06578DCA2
4 changed files with 32 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

4
fs/inode.c
View file

@ -2148,7 +2148,7 @@ EXPORT_SYMBOL(init_special_inode);
void inode_init_owner(struct user_namespace *mnt_userns, struct inode *inode,
const struct inode *dir, umode_t mode)
{
inode->i_uid = mapped_fsuid(mnt_userns);
inode_fsuid_set(inode, mnt_userns);
if (dir && dir->i_mode & S_ISGID) {
inode->i_gid = dir->i_gid;
@ -2160,7 +2160,7 @@ void inode_init_owner(struct user_namespace *mnt_userns, struct inode *inode,
!capable_wrt_inode_uidgid(mnt_userns, dir, CAP_FSETID))
mode &= ~S_ISGID;
} else
inode->i_gid = mapped_fsgid(mnt_userns);
inode_fsgid_set(inode, mnt_userns);
inode->i_mode = mode;
}
EXPORT_SYMBOL(inode_init_owner);