diff options
Diffstat (limited to 'fs/ext2')
| -rw-r--r-- | fs/ext2/ioctl.c | 6 | ||||
| -rw-r--r-- | fs/ext2/super.c | 24 | ||||
| -rw-r--r-- | fs/ext2/xattr.c | 5 |
3 files changed, 21 insertions, 14 deletions
diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c index 1dfba77eab10..e3cf8c81507f 100644 --- a/fs/ext2/ioctl.c +++ b/fs/ext2/ioctl.c @@ -44,6 +44,7 @@ int ext2_ioctl (struct inode * inode, struct file * filp, unsigned int cmd, if (!S_ISDIR(inode->i_mode)) flags &= ~EXT2_DIRSYNC_FL; + mutex_lock(&inode->i_mutex); oldflags = ei->i_flags; /* @@ -53,13 +54,16 @@ int ext2_ioctl (struct inode * inode, struct file * filp, unsigned int cmd, * This test looks nicer. Thanks to Pauline Middelink */ if ((flags ^ oldflags) & (EXT2_APPEND_FL | EXT2_IMMUTABLE_FL)) { - if (!capable(CAP_LINUX_IMMUTABLE)) + if (!capable(CAP_LINUX_IMMUTABLE)) { + mutex_unlock(&inode->i_mutex); return -EPERM; + } } flags = flags & EXT2_FL_USER_MODIFIABLE; flags |= oldflags & ~EXT2_FL_USER_MODIFIABLE; ei->i_flags = flags; + mutex_unlock(&inode->i_mutex); ext2_set_inode_flags(inode); inode->i_ctime = CURRENT_TIME_SEC; diff --git a/fs/ext2/super.c b/fs/ext2/super.c index d8b9abd95d07..255cef5f7420 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -135,12 +135,12 @@ static void ext2_put_super (struct super_block * sb) return; } -static kmem_cache_t * ext2_inode_cachep; +static struct kmem_cache * ext2_inode_cachep; static struct inode *ext2_alloc_inode(struct super_block *sb) { struct ext2_inode_info *ei; - ei = (struct ext2_inode_info *)kmem_cache_alloc(ext2_inode_cachep, SLAB_KERNEL); + ei = (struct ext2_inode_info *)kmem_cache_alloc(ext2_inode_cachep, GFP_KERNEL); if (!ei) return NULL; #ifdef CONFIG_EXT2_FS_POSIX_ACL @@ -156,7 +156,7 @@ static void ext2_destroy_inode(struct inode *inode) kmem_cache_free(ext2_inode_cachep, EXT2_I(inode)); } -static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags) +static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flags) { struct ext2_inode_info *ei = (struct ext2_inode_info *) foo; @@ -1090,8 +1090,10 @@ static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf) { struct super_block *sb = dentry->d_sb; struct ext2_sb_info *sbi = EXT2_SB(sb); + struct ext2_super_block *es = sbi->s_es; unsigned long overhead; int i; + u64 fsid; if (test_opt (sb, MINIX_DF)) overhead = 0; @@ -1104,7 +1106,7 @@ static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf) * All of the blocks before first_data_block are * overhead */ - overhead = le32_to_cpu(sbi->s_es->s_first_data_block); + overhead = le32_to_cpu(es->s_first_data_block); /* * Add the overhead attributed to the superblock and @@ -1125,14 +1127,18 @@ static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf) buf->f_type = EXT2_SUPER_MAGIC; buf->f_bsize = sb->s_blocksize; - buf->f_blocks = le32_to_cpu(sbi->s_es->s_blocks_count) - overhead; + buf->f_blocks = le32_to_cpu(es->s_blocks_count) - overhead; buf->f_bfree = ext2_count_free_blocks(sb); - buf->f_bavail = buf->f_bfree - le32_to_cpu(sbi->s_es->s_r_blocks_count); - if (buf->f_bfree < le32_to_cpu(sbi->s_es->s_r_blocks_count)) + buf->f_bavail = buf->f_bfree - le32_to_cpu(es->s_r_blocks_count); + if (buf->f_bfree < le32_to_cpu(es->s_r_blocks_count)) buf->f_bavail = 0; - buf->f_files = le32_to_cpu(sbi->s_es->s_inodes_count); - buf->f_ffree = ext2_count_free_inodes (sb); + buf->f_files = le32_to_cpu(es->s_inodes_count); + buf->f_ffree = ext2_count_free_inodes(sb); buf->f_namelen = EXT2_NAME_LEN; + fsid = le64_to_cpup((void *)es->s_uuid) ^ + le64_to_cpup((void *)es->s_uuid + sizeof(u64)); + buf->f_fsid.val[0] = fsid & 0xFFFFFFFFUL; + buf->f_fsid.val[1] = (fsid >> 32) & 0xFFFFFFFFUL; return 0; } diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c index af52a7f8b291..247efd0b51d6 100644 --- a/fs/ext2/xattr.c +++ b/fs/ext2/xattr.c @@ -342,12 +342,9 @@ static void ext2_xattr_update_super_block(struct super_block *sb) if (EXT2_HAS_COMPAT_FEATURE(sb, EXT2_FEATURE_COMPAT_EXT_ATTR)) return; - lock_super(sb); - EXT2_SB(sb)->s_es->s_feature_compat |= - cpu_to_le32(EXT2_FEATURE_COMPAT_EXT_ATTR); + EXT2_SET_COMPAT_FEATURE(sb, EXT2_FEATURE_COMPAT_EXT_ATTR); sb->s_dirt = 1; mark_buffer_dirty(EXT2_SB(sb)->s_sbh); - unlock_super(sb); } /* |