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[PATCH 53/53] mkfs: hack around not having enough log blocks

To: david@xxxxxxxxxxxxx, darrick.wong@xxxxxxxxxx
Subject: [PATCH 53/53] mkfs: hack around not having enough log blocks
From: "Darrick J. Wong" <darrick.wong@xxxxxxxxxx>
Date: Sat, 19 Dec 2015 01:10:51 -0800
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <20151219090450.14255.48364.stgit@xxxxxxxxxxxxxxxx>
References: <20151219090450.14255.48364.stgit@xxxxxxxxxxxxxxxx>
User-agent: StGit/0.17.1-dirty
Under some circumstances I don't yet understand, mkfs underestimates
the minimum log size and the kernel refuses to mount.  Put in a crude
hack so that this doesn't happen.

DO NOT APPLY!!!

Singed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
 mkfs/xfs_mkfs.c |    1 +
 1 file changed, 1 insertion(+)


diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index a65e2bf..547b9b9 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -2444,6 +2444,7 @@ an AG size that is one stripe unit smaller, for example 
%llu.\n"),
                                   logversion, lsunit);
        ASSERT(min_logblocks);
        min_logblocks = MAX(XFS_MIN_LOG_BLOCKS, min_logblocks);
+if (min_logblocks < 860) min_logblocks = 860;
        if (!logsize && dblocks >= (1024*1024*1024) >> blocklog)
                min_logblocks = MAX(min_logblocks, XFS_MIN_LOG_BYTES>>blocklog);
        if (logsize && xi.logBBsize > 0 && logblocks > DTOBT(xi.logBBsize)) {

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