And catch it at build time if we get out of sync again.
Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
---
V2: add BUILD_BUG_ON
V3: dynamically size the array
(I tested w/ dynamically sized but lost it in the V2 patch)
diff --git a/include/xfs.h b/include/xfs.h
index 9f0f11b..a40ca0c 100644
--- a/include/xfs.h
+++ b/include/xfs.h
@@ -64,6 +64,10 @@ extern int xfs_assert_largefile[sizeof(off_t)-8];
#define __packed __attribute__((packed))
#endif
+#ifndef BUILD_BUG_ON
+#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
+#endif
+
#include <xfs/xfs_types.h>
#include <xfs/xfs_fs.h>
diff --git a/io/inject.c b/io/inject.c
index 9d0cf62..fc3cf25 100644
--- a/io/inject.c
+++ b/io/inject.c
@@ -30,7 +30,7 @@ error_tag(char *name)
static struct {
int tag;
char *name;
- } *e, eflags[XFS_ERRTAG_MAX + 1] = {
+ } *e, eflags[] = {
{ XFS_ERRTAG_NOERROR, "noerror" },
{ XFS_ERRTAG_IFLUSH_1, "iflush1" },
{ XFS_ERRTAG_IFLUSH_2, "iflush2" },
@@ -62,10 +62,14 @@ error_tag(char *name)
{ XFS_ERRTAG_DROP_WRITES, "drop_writes" },
{ XFS_ERRTAG_LOG_BAD_CRC, "log_bad_crc" },
{ XFS_ERRTAG_LOG_ITEM_PIN, "log_item_pin" },
+ { XFS_ERRTAG_BUF_LRU_REF, "buf_lru_ref" },
{ XFS_ERRTAG_MAX, NULL }
};
int count;
+ /* If this fails make sure every tag is defined in the array above */
+ BUILD_BUG_ON(sizeof(eflags) != (XFS_ERRTAG_MAX + 1) * sizeof(*e));
+
/* Search for a name */
if (name) {
for (e = eflags; e->name; e++)
--
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