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Subject[PATCH 4.19 68/97] ext4: fix mount failure with quota configured as module
Date
From: Jan Kara <jack@suse.cz>

commit 9db176bceb5c5df4990486709da386edadc6bd1d upstream.

When CONFIG_QFMT_V2 is configured as a module, the test in
ext4_feature_set_ok() fails and so mount of filesystems with quota or
project features fails. Fix the test to use IS_ENABLED macro which
works properly even for modules.

Link: https://lore.kernel.org/r/20200221100835.9332-1-jack@suse.cz
Fixes: d65d87a07476 ("ext4: improve explanation of a mount failure caused by a misconfigured kernel")
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
fs/ext4/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2948,7 +2948,7 @@ static int ext4_feature_set_ok(struct su
return 0;
}

-#if !defined(CONFIG_QUOTA) || !defined(CONFIG_QFMT_V2)
+#if !IS_ENABLED(CONFIG_QUOTA) || !IS_ENABLED(CONFIG_QFMT_V2)
if (!readonly && (ext4_has_feature_quota(sb) ||
ext4_has_feature_project(sb))) {
ext4_msg(sb, KERN_ERR,

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