diff options
Diffstat (limited to 'fs/ext2')
| -rw-r--r-- | fs/ext2/acl.c | 32 | ||||
| -rw-r--r-- | fs/ext2/balloc.c | 2 | ||||
| -rw-r--r-- | fs/ext2/super.c | 5 |
3 files changed, 28 insertions, 11 deletions
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c index 35d6a3cfd9ff..110b6b371a4e 100644 --- a/fs/ext2/acl.c +++ b/fs/ext2/acl.c @@ -53,16 +53,23 @@ ext2_acl_from_disk(const void *value, size_t size) case ACL_OTHER: value = (char *)value + sizeof(ext2_acl_entry_short); - acl->a_entries[n].e_id = ACL_UNDEFINED_ID; break; case ACL_USER: + value = (char *)value + sizeof(ext2_acl_entry); + if ((char *)value > end) + goto fail; + acl->a_entries[n].e_uid = + make_kuid(&init_user_ns, + le32_to_cpu(entry->e_id)); + break; case ACL_GROUP: value = (char *)value + sizeof(ext2_acl_entry); if ((char *)value > end) goto fail; - acl->a_entries[n].e_id = - le32_to_cpu(entry->e_id); + acl->a_entries[n].e_gid = + make_kgid(&init_user_ns, + le32_to_cpu(entry->e_id)); break; default: @@ -96,14 +103,19 @@ ext2_acl_to_disk(const struct posix_acl *acl, size_t *size) ext_acl->a_version = cpu_to_le32(EXT2_ACL_VERSION); e = (char *)ext_acl + sizeof(ext2_acl_header); for (n=0; n < acl->a_count; n++) { + const struct posix_acl_entry *acl_e = &acl->a_entries[n]; ext2_acl_entry *entry = (ext2_acl_entry *)e; - entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag); - entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm); - switch(acl->a_entries[n].e_tag) { + entry->e_tag = cpu_to_le16(acl_e->e_tag); + entry->e_perm = cpu_to_le16(acl_e->e_perm); + switch(acl_e->e_tag) { case ACL_USER: + entry->e_id = cpu_to_le32( + from_kuid(&init_user_ns, acl_e->e_uid)); + e += sizeof(ext2_acl_entry); + break; case ACL_GROUP: - entry->e_id = - cpu_to_le32(acl->a_entries[n].e_id); + entry->e_id = cpu_to_le32( + from_kgid(&init_user_ns, acl_e->e_gid)); e += sizeof(ext2_acl_entry); break; @@ -350,7 +362,7 @@ ext2_xattr_get_acl(struct dentry *dentry, const char *name, void *buffer, return PTR_ERR(acl); if (acl == NULL) return -ENODATA; - error = posix_acl_to_xattr(acl, buffer, size); + error = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); posix_acl_release(acl); return error; @@ -371,7 +383,7 @@ ext2_xattr_set_acl(struct dentry *dentry, const char *name, const void *value, return -EPERM; if (value) { - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (IS_ERR(acl)) return PTR_ERR(acl); else if (acl) { diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c index 376aa77f3ca7..2616d0ea5c5c 100644 --- a/fs/ext2/balloc.c +++ b/fs/ext2/balloc.c @@ -479,7 +479,7 @@ void ext2_discard_reservation(struct inode *inode) /** * ext2_free_blocks() -- Free given blocks and update quota and i_blocks * @inode: inode - * @block: start physcial block to free + * @block: start physical block to free * @count: number of blocks to free */ void ext2_free_blocks (struct inode * inode, unsigned long block, diff --git a/fs/ext2/super.c b/fs/ext2/super.c index af74d9e27b71..6c205d0c565b 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -206,6 +206,11 @@ static int init_inodecache(void) static void destroy_inodecache(void) { + /* + * Make sure all delayed rcu free inodes are flushed before we + * destroy cache. + */ + rcu_barrier(); kmem_cache_destroy(ext2_inode_cachep); } |