mkfs.xfs.8: Clarify mkfs vs. mount block size limits.

The current explanation is a bit vague to the uninitiated; clarify the text to make it obvious that while the mkfs.xfs utility is able to create valid filesystems with block sizes up to 65536, the Linux kernel can only mount filesystems with page sized or smaller blocks.

Signed-off-by Eric Sandeen <[email protected]>

---

man/man8/mkfs.xfs.8 +4 -1

index 1fe510b..980c7bc 100644
@@ -126,7 +126,10 @@ or in bytes with
 .BR size= .
 The default value is 4096 bytes (4 KiB), the minimum is 512, and the
 maximum is 65536 (64 KiB).
-XFS on Linux currently only supports pagesize or smaller blocks.
+Although
+.B mkfs.xfs
+will accept any of these values and create a valid filesystem,
+XFS on Linux can only mount filesystems with pagesize or smaller blocks.
 .TP
 .BI \-m " global_metadata_options"
 These options specify metadata format options that either apply to the entire

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