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f2fs: Show casefolding support only when supported 

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: 5aba54302a ("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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Daniel Rosenberg 2021-06-03 09:50:37 +00:00 committed by Greg Kroah-Hartman
parent 91d8460167
commit 52b01a8086
1 changed files with 4 additions and 0 deletions
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4
fs/f2fs/sysfs.c
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@ -499,7 +499,9 @@ F2FS_FEATURE_RO_ATTR(lost_found, FEAT_LOST_FOUND);
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
#define ATTR_LIST(name) (&f2fs_attr_##name.attr)
static struct attribute *f2fs_attrs[] = {
@ -568,7 +570,9 @@ static struct attribute *f2fs_feat_attrs[] = {
ATTR_LIST(verity),
#endif
ATTR_LIST(sb_checksum),
#ifdef CONFIG_UNICODE
ATTR_LIST(casefold),
#endif
NULL,
};
ATTRIBUTE_GROUPS(f2fs_feat);