Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index 15dbf1f..ffae692 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -570,7 +570,7 @@
  * When we crack an atomic LSN, we sample it first so that the value will not
  * change while we are cracking it into the component values. This means we
  * will always get consistent component values to work from. This should always
- * be used to smaple and crack LSNs taht are stored and updated in atomic
+ * be used to sample and crack LSNs that are stored and updated in atomic
  * variables.
  */
 static inline void