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authorEric Sandeen <sandeen@redhat.com>2013-01-31 00:54:55 +0000
committerJosef Bacik <jbacik@fusionio.com>2013-02-20 12:59:18 -0500
commitaa43a17c21cf35329b1a495dd6876798dd8b016b (patch)
treed958b6d58305a2ea121613e8e89cd52ccfdbf513 /fs/btrfs/ctree.h
parent5a01604783c23f28bd4212e839e79277193f974f (diff)
btrfs: handle null fs_info in btrfs_panic()
At least backref_tree_panic() can apparently pass in a null fs_info, so handle that in __btrfs_panic to get the message out on the console. The btrfs_panic macro also uses fs_info, but that's largely pointless; it's testing to see if BTRFS_MOUNT_PANIC_ON_FATAL_ERROR is not set. But if it *were* set, __btrfs_panic() would have, well, paniced and we wouldn't be here, testing it! So just BUG() at this point. And since we only use fs_info once now, just use it directly. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 78fba44ad3d..1e3a994e189 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3653,11 +3653,14 @@ __printf(5, 6)
void __btrfs_panic(struct btrfs_fs_info *fs_info, const char *function,
unsigned int line, int errno, const char *fmt, ...);
+/*
+ * If BTRFS_MOUNT_PANIC_ON_FATAL_ERROR is in mount_opt, __btrfs_panic
+ * will panic(). Otherwise we BUG() here.
+ */
#define btrfs_panic(fs_info, errno, fmt, args...) \
do { \
- struct btrfs_fs_info *_i = (fs_info); \
- __btrfs_panic(_i, __func__, __LINE__, errno, fmt, ##args); \
- BUG_ON(!(_i->mount_opt & BTRFS_MOUNT_PANIC_ON_FATAL_ERROR)); \
+ __btrfs_panic(fs_info, __func__, __LINE__, errno, fmt, ##args); \
+ BUG(); \
} while (0)
/* acl.c */