diff options
Diffstat (limited to 'fs/pidfs.c')
| -rw-r--r-- | fs/pidfs.c | 28 |
1 files changed, 3 insertions, 25 deletions
diff --git a/fs/pidfs.c b/fs/pidfs.c index d64a4cbeb0da..2ac6f5cd861d 100644 --- a/fs/pidfs.c +++ b/fs/pidfs.c @@ -569,36 +569,14 @@ static struct vfsmount *pidfs_mnt __ro_after_init; static int pidfs_setattr(struct mnt_idmap *idmap, struct dentry *dentry, struct iattr *attr) { - return -EOPNOTSUPP; + return anon_inode_setattr(idmap, dentry, attr); } - -/* - * User space expects pidfs inodes to have no file type in st_mode. - * - * In particular, 'lsof' has this legacy logic: - * - * type = s->st_mode & S_IFMT; - * switch (type) { - * ... - * case 0: - * if (!strcmp(p, "anon_inode")) - * Lf->ntype = Ntype = N_ANON_INODE; - * - * to detect our old anon_inode logic. - * - * Rather than mess with our internal sane inode data, just fix it - * up here in getattr() by masking off the format bits. - */ static int pidfs_getattr(struct mnt_idmap *idmap, const struct path *path, struct kstat *stat, u32 request_mask, unsigned int query_flags) { - struct inode *inode = d_inode(path->dentry); - - generic_fillattr(&nop_mnt_idmap, request_mask, inode, stat); - stat->mode &= ~S_IFMT; - return 0; + return anon_inode_getattr(idmap, path, stat, request_mask, query_flags); } static const struct inode_operations pidfs_inode_operations = { @@ -826,7 +804,7 @@ static int pidfs_init_inode(struct inode *inode, void *data) const struct pid *pid = data; inode->i_private = data; - inode->i_flags |= S_PRIVATE; + inode->i_flags |= S_PRIVATE | S_ANON_INODE; inode->i_mode |= S_IRWXU; inode->i_op = &pidfs_inode_operations; inode->i_fop = &pidfs_file_operations; |