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| author | Chris Mason | 2007-12-21 22:27:21 +0100 |
|---|---|---|
| committer | Chris Mason | 2008-09-25 17:03:58 +0200 |
| commit | 1832a6d5ee3b1af61001cadba9e10da9e91af4a4 (patch) | |
| tree | 3a6dcb2a186c3623b0355b7e45d1b94ecae5e54d /fs/btrfs/disk-io.c | |
| parent | Btrfs: Less aggressive readahead on deletes (diff) | |
| download | kernel-qcow2-linux-1832a6d5ee3b1af61001cadba9e10da9e91af4a4.tar.gz kernel-qcow2-linux-1832a6d5ee3b1af61001cadba9e10da9e91af4a4.tar.xz kernel-qcow2-linux-1832a6d5ee3b1af61001cadba9e10da9e91af4a4.zip | |
Btrfs: Implement basic support for -ENOSPC
This is intended to prevent accidentally filling the drive. A determined
user can still make things oops.
It includes some accounting of the current bytes under delayed allocation,
but this will change as things get optimized
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
| -rw-r--r-- | fs/btrfs/disk-io.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index ebb2db624fdd..eebb4fb65c61 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -223,7 +223,8 @@ static int btree_writepages(struct address_space *mapping, } else { thresh = 8 * 1024 * 1024; } - num_dirty = count_range_bits(tree, &start, thresh, EXTENT_DIRTY); + num_dirty = count_range_bits(tree, &start, (u64)-1, + thresh, EXTENT_DIRTY); if (num_dirty < thresh) { return 0; } @@ -559,6 +560,7 @@ struct btrfs_root *open_ctree(struct super_block *sb) INIT_LIST_HEAD(&fs_info->dead_roots); INIT_LIST_HEAD(&fs_info->hashers); spin_lock_init(&fs_info->hash_lock); + spin_lock_init(&fs_info->delalloc_lock); memset(&fs_info->super_kobj, 0, sizeof(fs_info->super_kobj)); init_completion(&fs_info->kobj_unregister); @@ -570,6 +572,7 @@ struct btrfs_root *open_ctree(struct super_block *sb) fs_info->sb = sb; fs_info->mount_opt = 0; fs_info->max_extent = (u64)-1; + fs_info->delalloc_bytes = 0; fs_info->btree_inode = new_inode(sb); fs_info->btree_inode->i_ino = 1; fs_info->btree_inode->i_nlink = 1; |