diff options
Diffstat (limited to 'fs/xfs/xfs_linux.h')
| -rw-r--r-- | fs/xfs/xfs_linux.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h index dcd1292664b3..00a5efeec496 100644 --- a/fs/xfs/xfs_linux.h +++ b/fs/xfs/xfs_linux.h @@ -142,6 +142,13 @@ typedef __u32 xfs_nlink_t; #define SYNCHRONIZE() barrier() #define __return_address __builtin_return_address(0) +/* + * Return the address of a label. Use barrier() so that the optimizer + * won't reorder code to refactor the error jumpouts into a single + * return, which throws off the reported address. + */ +#define __this_address ({ __label__ __here; __here: barrier(); &&__here; }) + #define XFS_PROJID_DEFAULT 0 #define MIN(a,b) (min(a,b)) |