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| author | Yan Zheng <zheng.yan@oracle.com> | 2008-12-19 10:59:04 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-12-19 10:59:04 -0500 |
| commit | 1f80e4db0fcb3bdc2be51389baf558a9519682f0 (patch) | |
| tree | 3a47b6fda78aab8a1a4e9e7f021bb9126a298496 | |
| parent | 34bf63c4ddddd92bfba3387d134c37bf4426b2ce (diff) | |
| download | op-kernel-dev-1f80e4db0fcb3bdc2be51389baf558a9519682f0.zip op-kernel-dev-1f80e4db0fcb3bdc2be51389baf558a9519682f0.tar.gz | |
Btrfs: set EXTENT_BOUNDARY bit before marking extent delalloc.
There is a race in relocate_inode_pages, it happens when
find_delalloc_range finds the delalloc extent before the
boundary bit is set. Thank you,
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
| -rw-r--r-- | fs/btrfs/extent-tree.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 274bb91..fe0e59a 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3994,10 +3994,10 @@ again: } set_page_extent_mapped(page); - btrfs_set_extent_delalloc(inode, page_start, page_end); if (i == first_index) set_extent_bits(io_tree, page_start, page_end, EXTENT_BOUNDARY, GFP_NOFS); + btrfs_set_extent_delalloc(inode, page_start, page_end); set_page_dirty(page); total_dirty++; @@ -4405,7 +4405,7 @@ static int noinline get_new_locations(struct inode *reloc_inode, path->slots[0]++; } - WARN_ON(cur_pos + offset > last_byte); + BUG_ON(cur_pos + offset > last_byte); if (cur_pos + offset < last_byte) { ret = -ENOENT; goto out; @@ -5712,7 +5712,6 @@ next: if (pass == 0) { btrfs_wait_ordered_range(reloc_inode, 0, (u64)-1); invalidate_mapping_pages(reloc_inode->i_mapping, 0, -1); - WARN_ON(reloc_inode->i_mapping->nrpages); } if (total_found > 0) { |
