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f2fs: Show casefolding support only when supported

PATCH In review Eric Biggers 2 participants 2 messages Jul 20, 2021 – Jul 22, 2021 Stable branch

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Eric Biggers

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PATCH 1/1 f2fs: Show casefolding support only when supported

From: Daniel Rosenberg <[email protected]>

commit 39307f8ee3539478c28e71b4909b5b028cce14b1 upstream. [Please apply to 5.10-stable, 5.12-stable, and 5.13-stable.]

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 [email protected] # v5.4+
Signed-off-by Daniel Rosenberg <[email protected]>
Reviewed-by Eric Biggers <[email protected]>
Reviewed-by Chao Yu <[email protected]>
Signed-off-by Jaegeuk Kim <[email protected]>
Signed-off-by Eric Biggers <[email protected]>
---
 fs/f2fs/sysfs.c | 4 ++++
 1 file changed, 4 insertions(+)
fs/f2fs/sysfs.c +4 -0
index ec77ccfea923..b8850c81068a 100644
@@ -612,7 +612,9 @@ 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
 #ifdef CONFIG_F2FS_FS_COMPRESSION
 F2FS_FEATURE_RO_ATTR(compression, FEAT_COMPRESSION);
 #endif

@@ -700,7 +702,9 @@ 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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#1 lore raw
Quoted 4 lines · Eric Biggers

From: Daniel Rosenberg <[email protected]>

commit 39307f8ee3539478c28e71b4909b5b028cce14b1 upstream. [Please apply to 5.10-stable, 5.12-stable, and 5.13-stable.]

Now queued up to 5.13 and 5.10 stable, thanks.

greg k-h