[PATCH 5.13 083/800] f2fs: Advertise encrypted casefolding in sysfs
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-07-12 08:17:04
Also in:
lkml
From: Daniel Rosenberg <redacted>
commit 4c039d5452691fe80260e4c3dd7b629a095bd0a7 upstream.
Older kernels don't support encryption with casefolding. This adds
the sysfs entry encrypted_casefold to show support for those combined
features. Support for this feature was originally added by
commit 7ad08a58bf67 ("f2fs: Handle casefolding with Encryption")
Fixes: 7ad08a58bf67 ("f2fs: Handle casefolding with Encryption")
Cc: stable@vger.kernel.org # v5.11+
Signed-off-by: Daniel Rosenberg <redacted>
Reviewed-by: Eric Biggers <redacted>
Reviewed-by: Chao Yu <redacted>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/f2fs/sysfs.c | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c@@ -562,6 +562,7 @@ enum feat_id { FEAT_CASEFOLD, FEAT_COMPRESSION, FEAT_TEST_DUMMY_ENCRYPTION_V2, + FEAT_ENCRYPTED_CASEFOLD, }; static ssize_t f2fs_feature_show(struct f2fs_attr *a,
@@ -583,6 +584,7 @@ static ssize_t f2fs_feature_show(struct case FEAT_CASEFOLD: case FEAT_COMPRESSION: case FEAT_TEST_DUMMY_ENCRYPTION_V2: + case FEAT_ENCRYPTED_CASEFOLD: return sprintf(buf, "supported\n"); } return 0;
@@ -687,7 +689,10 @@ F2FS_GENERAL_RO_ATTR(avg_vblocks); #ifdef CONFIG_FS_ENCRYPTION F2FS_FEATURE_RO_ATTR(encryption, FEAT_CRYPTO); F2FS_FEATURE_RO_ATTR(test_dummy_encryption_v2, FEAT_TEST_DUMMY_ENCRYPTION_V2); +#ifdef CONFIG_UNICODE +F2FS_FEATURE_RO_ATTR(encrypted_casefold, FEAT_ENCRYPTED_CASEFOLD); #endif +#endif /* CONFIG_FS_ENCRYPTION */ #ifdef CONFIG_BLK_DEV_ZONED F2FS_FEATURE_RO_ATTR(block_zoned, FEAT_BLKZONED); #endif
@@ -786,7 +791,10 @@ static struct attribute *f2fs_feat_attrs #ifdef CONFIG_FS_ENCRYPTION ATTR_LIST(encryption), ATTR_LIST(test_dummy_encryption_v2), +#ifdef CONFIG_UNICODE + ATTR_LIST(encrypted_casefold), #endif +#endif /* CONFIG_FS_ENCRYPTION */ #ifdef CONFIG_BLK_DEV_ZONED ATTR_LIST(block_zoned), #endif