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-rw-r--r--fs/ext4/indirect.c7
-rw-r--r--fs/ext4/inode.c5
-rw-r--r--fs/ext4/ioctl.c33
-rw-r--r--fs/ext4/super.c7
4 files changed, 48 insertions, 4 deletions
diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
index ea704dff8669..3cfc73fbca8e 100644
--- a/fs/ext4/indirect.c
+++ b/fs/ext4/indirect.c
@@ -699,6 +699,13 @@ int ext4_ind_map_blocks(handle_t *handle, struct inode *inode,
/*
* Okay, we need to do block allocation.
*/
+ if (EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,
+ EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
+ EXT4_ERROR_INODE(inode, "Can't allocate blocks for "
+ "non-extent mapped inodes with bigalloc");
+ return -ENOSPC;
+ }
+
goal = ext4_find_goal(inode, map->m_lblk, partial);
/* the number of blocks need to allocate for [d,t]indirect blocks */
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 6ecc93979e48..904a9a623dab 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3358,6 +3358,11 @@ int ext4_punch_hole(struct file *file, loff_t offset, loff_t length)
return -ENOTSUPP;
}
+ if (EXT4_SB(inode->i_sb)->s_cluster_ratio > 1) {
+ /* TODO: Add support for bigalloc file systems */
+ return -ENOTSUPP;
+ }
+
return ext4_ext_punch_hole(file, offset, length);
}
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index f18bfe37aff8..2046d699b4a7 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -21,6 +21,7 @@
long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
struct inode *inode = filp->f_dentry->d_inode;
+ struct super_block *sb = inode->i_sb;
struct ext4_inode_info *ei = EXT4_I(inode);
unsigned int flags;
@@ -183,7 +184,6 @@ setversion_out:
* Returns 1 if it slept, else zero.
*/
{
- struct super_block *sb = inode->i_sb;
DECLARE_WAITQUEUE(wait, current);
int ret = 0;
@@ -199,7 +199,6 @@ setversion_out:
#endif
case EXT4_IOC_GROUP_EXTEND: {
ext4_fsblk_t n_blocks_count;
- struct super_block *sb = inode->i_sb;
int err, err2=0;
err = ext4_resize_begin(sb);
@@ -209,6 +208,13 @@ setversion_out:
if (get_user(n_blocks_count, (__u32 __user *)arg))
return -EFAULT;
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
+ ext4_msg(sb, KERN_ERR,
+ "Online resizing not supported with bigalloc");
+ return -EOPNOTSUPP;
+ }
+
err = mnt_want_write(filp->f_path.mnt);
if (err)
return err;
@@ -250,6 +256,13 @@ setversion_out:
goto mext_out;
}
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
+ ext4_msg(sb, KERN_ERR,
+ "Online defrag not supported with bigalloc");
+ return -EOPNOTSUPP;
+ }
+
err = mnt_want_write(filp->f_path.mnt);
if (err)
goto mext_out;
@@ -270,7 +283,6 @@ mext_out:
case EXT4_IOC_GROUP_ADD: {
struct ext4_new_group_data input;
- struct super_block *sb = inode->i_sb;
int err, err2=0;
err = ext4_resize_begin(sb);
@@ -281,6 +293,13 @@ mext_out:
sizeof(input)))
return -EFAULT;
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
+ ext4_msg(sb, KERN_ERR,
+ "Online resizing not supported with bigalloc");
+ return -EOPNOTSUPP;
+ }
+
err = mnt_want_write(filp->f_path.mnt);
if (err)
return err;
@@ -337,7 +356,6 @@ mext_out:
case FITRIM:
{
- struct super_block *sb = inode->i_sb;
struct request_queue *q = bdev_get_queue(sb->s_bdev);
struct fstrim_range range;
int ret = 0;
@@ -348,6 +366,13 @@ mext_out:
if (!blk_queue_discard(q))
return -EOPNOTSUPP;
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+ EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
+ ext4_msg(sb, KERN_ERR,
+ "FITRIM not supported with bigalloc");
+ return -EOPNOTSUPP;
+ }
+
if (copy_from_user(&range, (struct fstrim_range *)arg,
sizeof(range)))
return -EFAULT;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 823e7d9deee2..25a4bfe3f39f 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2701,6 +2701,13 @@ static int ext4_feature_set_ok(struct super_block *sb, int readonly)
return 0;
}
}
+ if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_BIGALLOC) &&
+ !EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_EXTENTS)) {
+ ext4_msg(sb, KERN_ERR,
+ "Can't support bigalloc feature without "
+ "extents feature\n");
+ return 0;
+ }
return 1;
}