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| author | Chris Mason <chris.mason@oracle.com> | 2007-12-21 16:27:21 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:03:58 -0400 |
| commit | 1832a6d5ee3b1af61001cadba9e10da9e91af4a4 (patch) | |
| tree | 3a6dcb2a186c3623b0355b7e45d1b94ecae5e54d /fs/btrfs/ctree.h | |
| parent | 01f466580502c57001bf80fff709479fdb9e87a5 (diff) | |
| download | lwn-1832a6d5ee3b1af61001cadba9e10da9e91af4a4.tar.gz lwn-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/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 2559f5d5d00a..10129cc6656f 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -346,6 +346,8 @@ struct btrfs_fs_info { int closing; u64 total_pinned; + spinlock_t delalloc_lock; + u64 delalloc_bytes; }; /* * in ram representation of the tree. extent_root is used for all allocations @@ -1115,6 +1117,8 @@ int btrfs_csum_truncate(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, u64 isize); /* inode.c */ +int btrfs_check_free_space(struct btrfs_root *root, u64 num_required, + int for_del); int btrfs_page_mkwrite(struct vm_area_struct *vma, struct page *page); int btrfs_readpage(struct file *file, struct page *page); void btrfs_delete_inode(struct inode *inode); |