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Subject[PATCH 5.13 107/156] f2fs: Show casefolding support only when supported
Date
From: Daniel Rosenberg <drosen@google.com>

commit 39307f8ee3539478c28e71b4909b5b028cce14b1 upstream.

The casefolding feature is only supported when CONFIG_UNICODE is set.
This modifies the feature list f2fs presents under sysfs accordingly.

Fixes: 5aba54302a46 ("f2fs: include charset encoding information in the superblock")
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Daniel Rosenberg <drosen@google.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
fs/f2fs/sysfs.c | 4 ++++
1 file changed, 4 insertions(+)

--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -708,7 +708,9 @@ F2FS_FEATURE_RO_ATTR(lost_found, FEAT_LO
F2FS_FEATURE_RO_ATTR(verity, FEAT_VERITY);
#endif
F2FS_FEATURE_RO_ATTR(sb_checksum, FEAT_SB_CHECKSUM);
+#ifdef CONFIG_UNICODE
F2FS_FEATURE_RO_ATTR(casefold, FEAT_CASEFOLD);
+#endif
#ifdef CONFIG_F2FS_FS_COMPRESSION
F2FS_FEATURE_RO_ATTR(compression, FEAT_COMPRESSION);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_written_block, compr_written_block);
@@ -810,7 +812,9 @@ static struct attribute *f2fs_feat_attrs
ATTR_LIST(verity),
#endif
ATTR_LIST(sb_checksum),
+#ifdef CONFIG_UNICODE
ATTR_LIST(casefold),
+#endif
#ifdef CONFIG_F2FS_FS_COMPRESSION
ATTR_LIST(compression),
#endif

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