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47 lines
1.5 KiB
Diff
47 lines
1.5 KiB
Diff
From d62e98ed1efcaa94caa004f622944afdce5f1c3c Mon Sep 17 00:00:00 2001
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From: Gabor Juhos <juhosg@openwrt.org>
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Date: Sun, 9 Dec 2018 18:12:13 +0100
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Subject: [PATCH] ubifs: Fix default compression selection in ubifs
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When ubifs is build without the LZO compressor and no compressor is
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given the creation of the default file system will fail. before
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selection the LZO compressor check if it is present and if not fall back
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to the zlib or none.
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Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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Signed-off-by: Richard Weinberger <richard@nod.at>
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---
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fs/ubifs/sb.c | 13 ++++++++++++-
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1 file changed, 12 insertions(+), 1 deletion(-)
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--- a/fs/ubifs/sb.c
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+++ b/fs/ubifs/sb.c
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@@ -63,6 +63,17 @@
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/* Default time granularity in nanoseconds */
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#define DEFAULT_TIME_GRAN 1000000000
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+static int get_default_compressor(struct ubifs_info *c)
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+{
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+ if (ubifs_compr_present(c, UBIFS_COMPR_LZO))
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+ return UBIFS_COMPR_LZO;
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+
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+ if (ubifs_compr_present(c, UBIFS_COMPR_ZLIB))
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+ return UBIFS_COMPR_ZLIB;
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+
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+ return UBIFS_COMPR_NONE;
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+}
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+
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/**
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* create_default_filesystem - format empty UBI volume.
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* @c: UBIFS file-system description object
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@@ -186,7 +197,7 @@ static int create_default_filesystem(str
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if (c->mount_opts.override_compr)
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sup->default_compr = cpu_to_le16(c->mount_opts.compr_type);
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else
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- sup->default_compr = cpu_to_le16(UBIFS_COMPR_LZO);
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+ sup->default_compr = cpu_to_le16(get_default_compressor(c));
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generate_random_uuid(sup->uuid);
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