[PATCH 4/8] fs/ntfs3: Refactoring and comments

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Signed-off-by: Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>
---
 fs/ntfs3/attrib.c  |  6 +++---
 fs/ntfs3/file.c    |  4 ++--
 fs/ntfs3/inode.c   |  3 ++-
 fs/ntfs3/namei.c   |  6 +++---
 fs/ntfs3/ntfs.h    |  2 +-
 fs/ntfs3/ntfs_fs.h |  2 --
 fs/ntfs3/record.c  |  6 ++++++
 fs/ntfs3/super.c   | 19 ++++++++-----------
 8 files changed, 25 insertions(+), 23 deletions(-)

diff --git a/fs/ntfs3/attrib.c b/fs/ntfs3/attrib.c
index a9d82bbb4729..e16487764282 100644
--- a/fs/ntfs3/attrib.c
+++ b/fs/ntfs3/attrib.c
@@ -1106,10 +1106,10 @@ int attr_data_get_block(struct ntfs_inode *ni, CLST vcn, CLST clen, CLST *lcn,
         }
     }

-    /*
+    /*
      * The code below may require additional cluster (to extend attribute list)
-     * and / or one MFT record
-     * It is too complex to undo operations if -ENOSPC occurs deep inside
+     * and / or one MFT record
+     * It is too complex to undo operations if -ENOSPC occurs deep inside
      * in 'ni_insert_nonresident'.
      * Return in advance -ENOSPC here if there are no free cluster and no free MFT.
      */
diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index 962f12ce6c0a..1f7a194983c5 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -745,8 +745,8 @@ static ssize_t ntfs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
 }

 static ssize_t ntfs_file_splice_read(struct file *in, loff_t *ppos,
-                     struct pipe_inode_info *pipe,
-                     size_t len, unsigned int flags)
+                     struct pipe_inode_info *pipe, size_t len,
+                     unsigned int flags)
 {
     struct inode *inode = in->f_mapping->host;
     struct ntfs_inode *ni = ntfs_i(inode);
diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c
index 2f76dc055c1f..d6d021e19aaa 100644
--- a/fs/ntfs3/inode.c
+++ b/fs/ntfs3/inode.c
@@ -1660,7 +1660,8 @@ struct inode *ntfs_create_inode(struct mnt_idmap *idmap, struct inode *dir,
     d_instantiate(dentry, inode);

     /* Set original time. inode times (i_ctime) may be changed in ntfs_init_acl. */ -    inode->i_atime = inode->i_mtime = inode_set_ctime_to_ts(inode, ni->i_crtime);
+    inode->i_atime = inode->i_mtime =
+        inode_set_ctime_to_ts(inode, ni->i_crtime);
     dir->i_mtime = inode_set_ctime_to_ts(dir, ni->i_crtime);

     mark_inode_dirty(dir);
diff --git a/fs/ntfs3/namei.c b/fs/ntfs3/namei.c
index ad430d50bd79..eedacf94edd8 100644
--- a/fs/ntfs3/namei.c
+++ b/fs/ntfs3/namei.c
@@ -156,8 +156,8 @@ static int ntfs_link(struct dentry *ode, struct inode *dir, struct dentry *de)
     err = ntfs_link_inode(inode, de);

     if (!err) {
-        dir->i_mtime = inode_set_ctime_to_ts(inode,
-                             inode_set_ctime_current(dir));
+        dir->i_mtime = inode_set_ctime_to_ts(
+            inode, inode_set_ctime_current(dir));
         mark_inode_dirty(inode);
         mark_inode_dirty(dir);
         d_instantiate(de, inode);
@@ -373,7 +373,7 @@ static int ntfs_atomic_open(struct inode *dir, struct dentry *dentry,

 #ifdef CONFIG_NTFS3_FS_POSIX_ACL
     if (IS_POSIXACL(dir)) {
-        /*
+        /*
          * Load in cache current acl to avoid ni_lock(dir):
          * ntfs_create_inode -> ntfs_init_acl -> posix_acl_create ->
          * ntfs_get_acl -> ntfs_get_acl_ex -> ni_lock
diff --git a/fs/ntfs3/ntfs.h b/fs/ntfs3/ntfs.h
index 98b76d1b09e7..86aecbb01a92 100644
--- a/fs/ntfs3/ntfs.h
+++ b/fs/ntfs3/ntfs.h
@@ -847,7 +847,7 @@ struct OBJECT_ID {
     // Birth Volume Id is the Object Id of the Volume on.
     // which the Object Id was allocated. It never changes.
     struct GUID BirthVolumeId; //0x10:
-
+
     // Birth Object Id is the first Object Id that was
     // ever assigned to this MFT Record. I.e. If the Object Id
     // is changed for some reason, this field will reflect the
diff --git a/fs/ntfs3/ntfs_fs.h b/fs/ntfs3/ntfs_fs.h
index 788567d71d93..0e6a2777870c 100644
--- a/fs/ntfs3/ntfs_fs.h
+++ b/fs/ntfs3/ntfs_fs.h
@@ -497,8 +497,6 @@ int ntfs_getattr(struct mnt_idmap *idmap, const struct path *path,
          struct kstat *stat, u32 request_mask, u32 flags);
 int ntfs3_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
           struct iattr *attr);
-void ntfs_sparse_cluster(struct inode *inode, struct page *page0, CLST vcn,
-             CLST len);
 int ntfs_file_open(struct inode *inode, struct file *file);
 int ntfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
         __u64 start, __u64 len);
diff --git a/fs/ntfs3/record.c b/fs/ntfs3/record.c
index 02cc91ed8835..53629b1f65e9 100644
--- a/fs/ntfs3/record.c
+++ b/fs/ntfs3/record.c
@@ -189,6 +189,12 @@ int mi_read(struct mft_inode *mi, bool is_mft)
     return err;
 }

+/*
+ * mi_enum_attr - start/continue attributes enumeration in record.
+ *
+ * NOTE: mi->mrec - memory of size sbi->record_size
+ * here we sure that mi->mrec->total == sbi->record_size (see mi_read)
+ */
 struct ATTRIB *mi_enum_attr(struct mft_inode *mi, struct ATTRIB *attr)
 {
     const struct MFT_REC *rec = mi->mrec;
diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
index d2951b23f52a..f9a214367113 100644
--- a/fs/ntfs3/super.c
+++ b/fs/ntfs3/super.c
@@ -488,7 +488,6 @@ static ssize_t ntfs3_label_write(struct file *file, const char __user *buffer,
 {
     int err;
     struct super_block *sb = pde_data(file_inode(file));
-    struct ntfs_sb_info *sbi = sb->s_fs_info;
     ssize_t ret = count;
     u8 *label = kmalloc(count, GFP_NOFS);

@@ -502,7 +501,7 @@ static ssize_t ntfs3_label_write(struct file *file, const char __user *buffer,
     while (ret > 0 && label[ret - 1] == '\n')
         ret -= 1;

-    err = ntfs_set_label(sbi, label, ret);
+    err = ntfs_set_label(sb->s_fs_info, label, ret);

     if (err < 0) {
         ntfs_err(sb, "failed (%d) to write label", err);
@@ -1082,10 +1081,10 @@ static int ntfs_init_from_boot(struct super_block *sb, u32 sector_size,

     if (bh->b_blocknr && !sb_rdonly(sb)) {
         /*
-         * Alternative boot is ok but primary is not ok.
-         * Do not update primary boot here 'cause it may be faked boot.
-         * Let ntfs to be mounted and update boot later.
-         */
+          * Alternative boot is ok but primary is not ok.
+          * Do not update primary boot here 'cause it may be faked boot.
+          * Let ntfs to be mounted and update boot later.
+         */
         *boot2 = kmemdup(boot, sizeof(*boot), GFP_NOFS | __GFP_NOWARN);
     }

@@ -1549,9 +1548,9 @@ static int ntfs_fill_super(struct super_block *sb, struct fs_context *fc)

     if (boot2) {
         /*
-         * Alternative boot is ok but primary is not ok.
-         * Volume is recognized as NTFS. Update primary boot.
-         */
+          * Alternative boot is ok but primary is not ok.
+          * Volume is recognized as NTFS. Update primary boot.
+         */
         struct buffer_head *bh0 = sb_getblk(sb, 0);
         if (bh0) {
             if (buffer_locked(bh0))
@@ -1785,7 +1784,6 @@ static int __init init_ntfs_fs(void)
     if (IS_ENABLED(CONFIG_NTFS3_LZX_XPRESS))
         pr_info("ntfs3: Read-only LZX/Xpress compression included\n");

-
 #ifdef CONFIG_PROC_FS
     /* Create "/proc/fs/ntfs3" */
     proc_info_root = proc_mkdir("fs/ntfs3", NULL);
@@ -1827,7 +1825,6 @@ static void __exit exit_ntfs_fs(void)
     if (proc_info_root)
         remove_proc_entry("fs/ntfs3", NULL);
 #endif
-
 }

 MODULE_LICENSE("GPL");
--
2.34.1





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