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Message-ID: <20251017101751.5841-1-almaz.alexandrovich@paragon-software.com>
Date: Fri, 17 Oct 2025 12:17:51 +0200
From: Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
To: <ntfs3@...ts.linux.dev>
CC: <linux-kernel@...r.kernel.org>, <linux-fsdevel@...r.kernel.org>,
Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
Subject: [PATCH] fs/ntfs3: Reformat code and update terminology
Reformatted the driver code according to the current .clang-format rules
and updated description of used terminology. No functional changes
intended.
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
---
fs/ntfs3/dir.c | 3 +--
fs/ntfs3/file.c | 8 +++-----
fs/ntfs3/frecord.c | 7 ++++---
fs/ntfs3/inode.c | 19 +++++++++++--------
fs/ntfs3/namei.c | 6 +++---
fs/ntfs3/ntfs_fs.h | 6 +++---
fs/ntfs3/super.c | 31 +++++++++++++++++--------------
7 files changed, 42 insertions(+), 38 deletions(-)
diff --git a/fs/ntfs3/dir.c b/fs/ntfs3/dir.c
index 1b5c865a0339..b98e95d6b4d9 100644
--- a/fs/ntfs3/dir.c
+++ b/fs/ntfs3/dir.c
@@ -332,8 +332,7 @@ static inline bool ntfs_dir_emit(struct ntfs_sb_info *sbi,
* It does additional locks/reads just to get the type of name.
* Should we use additional mount option to enable branch below?
*/
- if (fname->dup.extend_data &&
- ino != ni->mi.rno) {
+ if (fname->dup.extend_data && ino != ni->mi.rno) {
struct inode *inode = ntfs_iget5(sbi->sb, &e->ref, NULL);
if (!IS_ERR_OR_NULL(inode)) {
dt_type = fs_umode_to_dtype(inode->i_mode);
diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index 4c90ec2fa2ea..a9ba37758944 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -503,8 +503,6 @@ static int ntfs_truncate(struct inode *inode, loff_t new_size)
if (dirty)
mark_inode_dirty(inode);
- /*ntfs_flush_inodes(inode->i_sb, inode, NULL);*/
-
return 0;
}
@@ -1114,8 +1112,8 @@ static ssize_t ntfs_compress_write(struct kiocb *iocb, struct iov_iter *from)
size_t cp, tail = PAGE_SIZE - off;
folio = page_folio(pages[ip]);
- cp = copy_folio_from_iter_atomic(folio, off,
- min(tail, bytes), from);
+ cp = copy_folio_from_iter_atomic(
+ folio, off, min(tail, bytes), from);
flush_dcache_folio(folio);
copied += cp;
@@ -1312,7 +1310,7 @@ static int ntfs_file_release(struct inode *inode, struct file *file)
if (sbi->options->prealloc &&
((file->f_mode & FMODE_WRITE) &&
atomic_read(&inode->i_writecount) == 1)
- /*
+ /*
* The only file when inode->i_fop = &ntfs_file_operations and
* init_rwsem(&ni->file.run_lock) is not called explicitly is MFT.
*
diff --git a/fs/ntfs3/frecord.c b/fs/ntfs3/frecord.c
index 8f9fe1d7a690..c1c2ddaeb1e7 100644
--- a/fs/ntfs3/frecord.c
+++ b/fs/ntfs3/frecord.c
@@ -3026,8 +3026,8 @@ int ni_rename(struct ntfs_inode *dir_ni, struct ntfs_inode *new_dir_ni,
err = ni_add_name(new_dir_ni, ni, new_de);
if (!err) {
err = ni_remove_name(dir_ni, ni, de, &de2, &undo);
- WARN_ON(err && ni_remove_name(new_dir_ni, ni, new_de, &de2,
- &undo));
+ WARN_ON(err &&
+ ni_remove_name(new_dir_ni, ni, new_de, &de2, &undo));
}
/*
@@ -3127,7 +3127,8 @@ static bool ni_update_parent(struct ntfs_inode *ni, struct NTFS_DUP_INFO *dup,
if (attr) {
const struct REPARSE_POINT *rp;
- rp = resident_data_ex(attr, sizeof(struct REPARSE_POINT));
+ rp = resident_data_ex(attr,
+ sizeof(struct REPARSE_POINT));
/* If ATTR_REPARSE exists 'rp' can't be NULL. */
if (rp)
dup->extend_data = rp->ReparseTag;
diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c
index 3959f23c487a..b741a697e572 100644
--- a/fs/ntfs3/inode.c
+++ b/fs/ntfs3/inode.c
@@ -975,9 +975,9 @@ int ntfs_write_begin(const struct kiocb *iocb, struct address_space *mapping,
/*
* ntfs_write_end - Address_space_operations::write_end.
*/
-int ntfs_write_end(const struct kiocb *iocb,
- struct address_space *mapping, loff_t pos,
- u32 len, u32 copied, struct folio *folio, void *fsdata)
+int ntfs_write_end(const struct kiocb *iocb, struct address_space *mapping,
+ loff_t pos, u32 len, u32 copied, struct folio *folio,
+ void *fsdata)
{
struct inode *inode = mapping->host;
struct ntfs_inode *ni = ntfs_i(inode);
@@ -1099,7 +1099,7 @@ ntfs_create_reparse_buffer(struct ntfs_sb_info *sbi, const char *symname,
typeof(rp->SymbolicLinkReparseBuffer) *rs;
bool is_absolute;
- is_absolute = (strlen(symname) > 1 && symname[1] == ':');
+ is_absolute = symname[0] && symname[1] == ':';
rp = kzalloc(ntfs_reparse_bytes(2 * size + 2, is_absolute), GFP_NOFS);
if (!rp)
@@ -1136,17 +1136,19 @@ ntfs_create_reparse_buffer(struct ntfs_sb_info *sbi, const char *symname,
/* PrintName + SubstituteName. */
rs->SubstituteNameOffset = cpu_to_le16(sizeof(short) * err);
- rs->SubstituteNameLength = cpu_to_le16(sizeof(short) * err + (is_absolute ? 8 : 0));
+ rs->SubstituteNameLength =
+ cpu_to_le16(sizeof(short) * err + (is_absolute ? 8 : 0));
rs->PrintNameLength = rs->SubstituteNameOffset;
/*
* TODO: Use relative path if possible to allow Windows to
* parse this path.
- * 0-absolute path 1- relative path (SYMLINK_FLAG_RELATIVE).
+ * 0-absolute path, 1- relative path (SYMLINK_FLAG_RELATIVE).
*/
rs->Flags = cpu_to_le32(is_absolute ? 0 : SYMLINK_FLAG_RELATIVE);
- memmove(rp_name + err + (is_absolute ? 4 : 0), rp_name, sizeof(short) * err);
+ memmove(rp_name + err + (is_absolute ? 4 : 0), rp_name,
+ sizeof(short) * err);
if (is_absolute) {
/* Decorate SubstituteName. */
@@ -1635,7 +1637,8 @@ int ntfs_create_inode(struct mnt_idmap *idmap, struct inode *dir,
* Use ni_find_attr cause layout of MFT record may be changed
* in ntfs_init_acl and ntfs_save_wsl_perm.
*/
- attr = ni_find_attr(ni, NULL, NULL, ATTR_NAME, NULL, 0, NULL, NULL);
+ attr = ni_find_attr(ni, NULL, NULL, ATTR_NAME, NULL, 0, NULL,
+ NULL);
if (attr) {
struct ATTR_FILE_NAME *fn;
diff --git a/fs/ntfs3/namei.c b/fs/ntfs3/namei.c
index 82c8ae56beee..3b24ca02de61 100644
--- a/fs/ntfs3/namei.c
+++ b/fs/ntfs3/namei.c
@@ -207,13 +207,13 @@ static int ntfs_symlink(struct mnt_idmap *idmap, struct inode *dir,
}
/*
- * ntfs_mkdir- inode_operations::mkdir
+ * ntfs_mkdir - inode_operations::mkdir
*/
static struct dentry *ntfs_mkdir(struct mnt_idmap *idmap, struct inode *dir,
struct dentry *dentry, umode_t mode)
{
- return ERR_PTR(ntfs_create_inode(idmap, dir, dentry, NULL, S_IFDIR | mode, 0,
- NULL, 0, NULL));
+ return ERR_PTR(ntfs_create_inode(idmap, dir, dentry, NULL,
+ S_IFDIR | mode, 0, NULL, 0, NULL));
}
/*
diff --git a/fs/ntfs3/ntfs_fs.h b/fs/ntfs3/ntfs_fs.h
index 2649fbe16669..6a7594d3f3eb 100644
--- a/fs/ntfs3/ntfs_fs.h
+++ b/fs/ntfs3/ntfs_fs.h
@@ -584,7 +584,8 @@ int ni_add_name(struct ntfs_inode *dir_ni, struct ntfs_inode *ni,
struct NTFS_DE *de);
int ni_rename(struct ntfs_inode *dir_ni, struct ntfs_inode *new_dir_ni,
- struct ntfs_inode *ni, struct NTFS_DE *de, struct NTFS_DE *new_de);
+ struct ntfs_inode *ni, struct NTFS_DE *de,
+ struct NTFS_DE *new_de);
bool ni_is_dirty(struct inode *inode);
@@ -709,8 +710,7 @@ int ntfs_set_size(struct inode *inode, u64 new_size);
int ntfs_get_block(struct inode *inode, sector_t vbn,
struct buffer_head *bh_result, int create);
int ntfs_write_begin(const struct kiocb *iocb, struct address_space *mapping,
- loff_t pos, u32 len, struct folio **foliop,
- void **fsdata);
+ loff_t pos, u32 len, struct folio **foliop, void **fsdata);
int ntfs_write_end(const struct kiocb *iocb, struct address_space *mapping,
loff_t pos, u32 len, u32 copied, struct folio *folio,
void *fsdata);
diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
index ddff94c091b8..9f69316d77b6 100644
--- a/fs/ntfs3/super.c
+++ b/fs/ntfs3/super.c
@@ -16,6 +16,13 @@
* mi - MFT inode - One MFT record(usually 1024 bytes or 4K), consists of attributes.
* ni - NTFS inode - Extends linux inode. consists of one or more mft inodes.
* index - unit inside directory - 2K, 4K, <=page size, does not depend on cluster size.
+ * resident attribute - Attribute with content stored directly in the MFT record
+ * non-resident attribute - Attribute with content stored in clusters
+ * data_size - Size of attribute content in bytes. Equal to inode->i_size
+ * valid_size - Number of bytes written to the non-resident attribute
+ * allocated_size - Total size of clusters allocated for non-resident content
+ * total_size - Actual size of allocated clusters for sparse or compressed attributes
+ * - Constraint: valid_size <= data_size <= allocated_size
*
* WSL - Windows Subsystem for Linux
* https://docs.microsoft.com/en-us/windows/wsl/file-permissions
@@ -288,10 +295,8 @@ static const struct fs_parameter_spec ntfs_fs_parameters[] = {
/*
* Load nls table or if @nls is utf8 then return NULL.
*
- * It is good idea to use here "const char *nls".
- * But load_nls accepts "char*".
*/
-static struct nls_table *ntfs_load_nls(char *nls)
+static struct nls_table *ntfs_load_nls(const char *nls)
{
struct nls_table *ret;
@@ -566,10 +571,8 @@ static void ntfs_create_procdir(struct super_block *sb)
if (e) {
struct ntfs_sb_info *sbi = sb->s_fs_info;
- proc_create_data("volinfo", 0444, e,
- &ntfs3_volinfo_fops, sb);
- proc_create_data("label", 0644, e,
- &ntfs3_label_fops, sb);
+ proc_create_data("volinfo", 0444, e, &ntfs3_volinfo_fops, sb);
+ proc_create_data("label", 0644, e, &ntfs3_label_fops, sb);
sbi->procdir = e;
}
}
@@ -600,10 +603,12 @@ static void ntfs_remove_proc_root(void)
}
}
#else
-static void ntfs_create_procdir(struct super_block *sb) {}
-static void ntfs_remove_procdir(struct super_block *sb) {}
-static void ntfs_create_proc_root(void) {}
-static void ntfs_remove_proc_root(void) {}
+// clang-format off
+static void ntfs_create_procdir(struct super_block *sb){}
+static void ntfs_remove_procdir(struct super_block *sb){}
+static void ntfs_create_proc_root(void){}
+static void ntfs_remove_proc_root(void){}
+// clang-format on
#endif
static struct kmem_cache *ntfs_inode_cachep;
@@ -1223,8 +1228,7 @@ static int ntfs_fill_super(struct super_block *sb, struct fs_context *fc)
sb->s_export_op = &ntfs_export_ops;
sb->s_time_gran = NTFS_TIME_GRAN; // 100 nsec
sb->s_xattr = ntfs_xattr_handlers;
- if (options->nocase)
- set_default_d_op(sb, &ntfs_dentry_ops);
+ set_default_d_op(sb, options->nocase ? &ntfs_dentry_ops : NULL);
options->nls = ntfs_load_nls(options->nls_name);
if (IS_ERR(options->nls)) {
@@ -1643,7 +1647,6 @@ static int ntfs_fill_super(struct super_block *sb, struct fs_context *fc)
out:
ntfs3_put_sbi(sbi);
kfree(boot2);
- ntfs3_put_sbi(sbi);
return err;
}
--
2.43.0
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