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authorEric Biggers <ebiggers@google.com>2021-09-09 11:45:13 -0700
committerEric Biggers <ebiggers@google.com>2021-09-20 19:32:33 -0700
commit4373b3dc922038e8924f648506f6556f2afa7e77 (patch)
tree315ddf83133cc6b0bacd418a349710fef86bf089
parente4e737bb5c170df6135a127739a9e6148ee3da82 (diff)
fscrypt: remove fscrypt_operations::max_namelen
The max_namelen field is unnecessary, as it is set to 255 (NAME_MAX) on all filesystems that support fscrypt (or plan to support fscrypt). For simplicity, just use NAME_MAX directly instead. Link: https://lore.kernel.org/r/20210909184513.139281-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com>
-rw-r--r--fs/crypto/fname.c3
-rw-r--r--fs/ext4/super.c1
-rw-r--r--fs/f2fs/super.c1
-rw-r--r--fs/ubifs/crypto.c1
-rw-r--r--include/linux/fscrypt.h3
5 files changed, 1 insertions, 8 deletions
diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c
index eb538c28df94..a9be4bc74a94 100644
--- a/fs/crypto/fname.c
+++ b/fs/crypto/fname.c
@@ -429,8 +429,7 @@ int fscrypt_setup_filename(struct inode *dir, const struct qstr *iname,
if (fscrypt_has_encryption_key(dir)) {
if (!fscrypt_fname_encrypted_size(&dir->i_crypt_info->ci_policy,
- iname->len,
- dir->i_sb->s_cop->max_namelen,
+ iname->len, NAME_MAX,
&fname->crypto_buf.len))
return -ENAMETOOLONG;
fname->crypto_buf.name = kmalloc(fname->crypto_buf.len,
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 0775950ee84e..f37e64f72b5d 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1566,7 +1566,6 @@ static const struct fscrypt_operations ext4_cryptops = {
.set_context = ext4_set_context,
.get_dummy_policy = ext4_get_dummy_policy,
.empty_dir = ext4_empty_dir,
- .max_namelen = EXT4_NAME_LEN,
.has_stable_inodes = ext4_has_stable_inodes,
.get_ino_and_lblk_bits = ext4_get_ino_and_lblk_bits,
};
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 78ebc306ee2b..cf049a042482 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2976,7 +2976,6 @@ static const struct fscrypt_operations f2fs_cryptops = {
.set_context = f2fs_set_context,
.get_dummy_policy = f2fs_get_dummy_policy,
.empty_dir = f2fs_empty_dir,
- .max_namelen = F2FS_NAME_LEN,
.has_stable_inodes = f2fs_has_stable_inodes,
.get_ino_and_lblk_bits = f2fs_get_ino_and_lblk_bits,
.get_num_devices = f2fs_get_num_devices,
diff --git a/fs/ubifs/crypto.c b/fs/ubifs/crypto.c
index 22be7aeb96c4..c57b46a352d8 100644
--- a/fs/ubifs/crypto.c
+++ b/fs/ubifs/crypto.c
@@ -82,5 +82,4 @@ const struct fscrypt_operations ubifs_crypt_operations = {
.get_context = ubifs_crypt_get_context,
.set_context = ubifs_crypt_set_context,
.empty_dir = ubifs_crypt_empty_dir,
- .max_namelen = UBIFS_MAX_NLEN,
};
diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index e912ed9141d9..91ea9477e9bd 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -118,9 +118,6 @@ struct fscrypt_operations {
*/
bool (*empty_dir)(struct inode *inode);
- /* The filesystem's maximum ciphertext filename length, in bytes */
- unsigned int max_namelen;
-
/*
* Check whether the filesystem's inode numbers and UUID are stable,
* meaning that they will never be changed even by offline operations