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| author | Dave Chinner <dchinner@redhat.com> | 2015-08-25 10:05:13 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2015-08-25 10:05:13 +1000 |
| commit | b6a9947efdbe0c9135d94b26b2f912f5b0b9dc45 (patch) | |
| tree | 94b9bc314c1075c4a65bb3f4d40ac9c941d2116e /fs/xfs | |
| parent | c184f855c483428027d6ec937e4a9d5f15b2cbad (diff) | |
| download | linux-b6a9947efdbe0c9135d94b26b2f912f5b0b9dc45.tar.bz2 | |
xfs: lockdep annotations throw warnings on non-debug builds
SO, now if we enable lockdep without enabling CONFIG_XFS_DEBUG,
the lockdep annotations throw a warning because the assert that uses
the lockdep define is not built in:
fs/xfs/xfs_inode.c:367:1: warning: 'xfs_lockdep_subclass_ok' defined but not used [-Wunused-function]
xfs_lockdep_subclass_ok(
So now we need to create an ifdef mess to sort this all out, because
we need to handle all the combinations of CONFIG_XFS_DEBUG=[y|n],
CONFIG_XFS_WARNING=[y|n] and CONFIG_LOCKDEP=[y|n] appropriately.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/xfs_inode.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index aa00ccc0bd78..c59da0e88c5f 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -362,7 +362,13 @@ int xfs_lots_retries; int xfs_lock_delays; #endif -#ifdef CONFIG_LOCKDEP +/* + * xfs_lockdep_subclass_ok() is only used in an ASSERT, so is only called when + * DEBUG or XFS_WARN is set. And MAX_LOCKDEP_SUBCLASSES is then only defined + * when CONFIG_LOCKDEP is set. Hence the complex define below to avoid build + * errors and warnings. + */ +#if (defined(DEBUG) || defined(XFS_WARN)) && defined(CONFIG_LOCKDEP) static bool xfs_lockdep_subclass_ok( int subclass) |