diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/xfs_iomap.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index 4fa4d66dc377..17170d9b9ff7 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -1239,10 +1239,18 @@ xfs_buffered_write_iomap_end( if (start_byte >= end_byte) return 0; - filemap_invalidate_lock(inode->i_mapping); - iomap_write_delalloc_release(inode, start_byte, end_byte, flags, iomap, - xfs_buffered_write_delalloc_punch); - filemap_invalidate_unlock(inode->i_mapping); + /* For zeroing operations the callers already hold invalidate_lock. */ + if (flags & (IOMAP_UNSHARE | IOMAP_ZERO)) { + rwsem_assert_held_write(&inode->i_mapping->invalidate_lock); + iomap_write_delalloc_release(inode, start_byte, end_byte, flags, + iomap, xfs_buffered_write_delalloc_punch); + } else { + filemap_invalidate_lock(inode->i_mapping); + iomap_write_delalloc_release(inode, start_byte, end_byte, flags, + iomap, xfs_buffered_write_delalloc_punch); + filemap_invalidate_unlock(inode->i_mapping); + } + return 0; } |