Unverified Commit 6c3684e7 authored by Konstantin Komarov's avatar Konstantin Komarov
Browse files

fs/ntfs3: Implement super_operations::shutdown 



Signed-off-by: default avatarKonstantin Komarov <almaz.alexandrovich@paragon-software.com>
parent e50f9560

fs/ntfs3/file.c

+18 −0
Original line number Diff line number Diff line
@@ -260,6 +260,9 @@ static int ntfs_file_mmap(struct file *file, struct vm_area_struct *vma) 
	bool rw = vma->vm_flags & VM_WRITE;

	int err;



	if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))

		return -EIO;



	if (is_encrypted(ni)) {

		ntfs_inode_warn(inode, "mmap encrypted not supported");

		return -EOPNOTSUPP;
@@ -677,6 +680,9 @@ int ntfs3_setattr(struct mnt_idmap *idmap, struct dentry *dentry, 
	umode_t mode = inode->i_mode;

	int err;



	if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))

		return -EIO;



	err = setattr_prepare(idmap, dentry, attr);

	if (err)

		goto out;
@@ -732,6 +738,9 @@ static ssize_t ntfs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter) 
	struct inode *inode = file->f_mapping->host;

	struct ntfs_inode *ni = ntfs_i(inode);



	if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))

		return -EIO;



	if (is_encrypted(ni)) {

		ntfs_inode_warn(inode, "encrypted i/o not supported");

		return -EOPNOTSUPP;
@@ -766,6 +775,9 @@ static ssize_t ntfs_file_splice_read(struct file *in, loff_t *ppos, 
	struct inode *inode = in->f_mapping->host;

	struct ntfs_inode *ni = ntfs_i(inode);



	if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))

		return -EIO;



	if (is_encrypted(ni)) {

		ntfs_inode_warn(inode, "encrypted i/o not supported");

		return -EOPNOTSUPP;
@@ -1058,6 +1070,9 @@ static ssize_t ntfs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) 
	int err;

	struct ntfs_inode *ni = ntfs_i(inode);



	if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))

		return -EIO;



	if (is_encrypted(ni)) {

		ntfs_inode_warn(inode, "encrypted i/o not supported");

		return -EOPNOTSUPP;
@@ -1118,6 +1133,9 @@ int ntfs_file_open(struct inode *inode, struct file *file) 
{

	struct ntfs_inode *ni = ntfs_i(inode);



	if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))

		return -EIO;



	if (unlikely((is_compressed(ni) || is_encrypted(ni)) &&

		     (file->f_flags & O_DIRECT))) {

		return -EOPNOTSUPP;

fs/ntfs3/frecord.c

+3 −0
Original line number Diff line number Diff line
@@ -3259,6 +3259,9 @@ int ni_write_inode(struct inode *inode, int sync, const char *hint) 
	if (is_bad_inode(inode) || sb_rdonly(sb))

		return 0;



	if (unlikely(ntfs3_forced_shutdown(sb)))

		return -EIO;



	if (!ni_trylock(ni)) {

		/* 'ni' is under modification, skip for now. */

		mark_inode_dirty_sync(inode);

fs/ntfs3/inode.c

+19 −2
Original line number Diff line number Diff line
@@ -852,9 +852,13 @@ static int ntfs_resident_writepage(struct folio *folio, 
				   struct writeback_control *wbc, void *data)

{

	struct address_space *mapping = data;

	struct ntfs_inode *ni = ntfs_i(mapping->host);

	struct inode *inode = mapping->host;

	struct ntfs_inode *ni = ntfs_i(inode);

	int ret;



	if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))

		return -EIO;



	ni_lock(ni);

	ret = attr_data_write_resident(ni, &folio->page);

	ni_unlock(ni);
@@ -868,7 +872,12 @@ static int ntfs_resident_writepage(struct folio *folio, 
static int ntfs_writepages(struct address_space *mapping,

			   struct writeback_control *wbc)

{

	if (is_resident(ntfs_i(mapping->host)))

	struct inode *inode = mapping->host;



	if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))

		return -EIO;



	if (is_resident(ntfs_i(inode)))

		return write_cache_pages(mapping, wbc, ntfs_resident_writepage,

					 mapping);

	return mpage_writepages(mapping, wbc, ntfs_get_block);
@@ -888,6 +897,9 @@ int ntfs_write_begin(struct file *file, struct address_space *mapping, 
	struct inode *inode = mapping->host;

	struct ntfs_inode *ni = ntfs_i(inode);



	if (unlikely(ntfs3_forced_shutdown(inode->i_sb)))

		return -EIO;



	*pagep = NULL;

	if (is_resident(ni)) {

		struct page *page =
@@ -1305,6 +1317,11 @@ struct inode *ntfs_create_inode(struct mnt_idmap *idmap, struct inode *dir, 
		goto out1;

	}



	if (unlikely(ntfs3_forced_shutdown(sb))) {

		err = -EIO;

		goto out2;

	}



	/* Mark rw ntfs as dirty. it will be cleared at umount. */

	ntfs_set_state(sbi, NTFS_DIRTY_DIRTY);

fs/ntfs3/namei.c

+12 −0
Original line number Diff line number Diff line
@@ -181,6 +181,9 @@ static int ntfs_unlink(struct inode *dir, struct dentry *dentry) 
	struct ntfs_inode *ni = ntfs_i(dir);

	int err;



	if (unlikely(ntfs3_forced_shutdown(dir->i_sb)))

		return -EIO;



	ni_lock_dir(ni);



	err = ntfs_unlink_inode(dir, dentry);
@@ -199,6 +202,9 @@ static int ntfs_symlink(struct mnt_idmap *idmap, struct inode *dir, 
	u32 size = strlen(symname);

	struct inode *inode;



	if (unlikely(ntfs3_forced_shutdown(dir->i_sb)))

		return -EIO;



	inode = ntfs_create_inode(idmap, dir, dentry, NULL, S_IFLNK | 0777, 0,

				  symname, size, NULL);
@@ -227,6 +233,9 @@ static int ntfs_rmdir(struct inode *dir, struct dentry *dentry) 
	struct ntfs_inode *ni = ntfs_i(dir);

	int err;



	if (unlikely(ntfs3_forced_shutdown(dir->i_sb)))

		return -EIO;



	ni_lock_dir(ni);



	err = ntfs_unlink_inode(dir, dentry);
@@ -264,6 +273,9 @@ static int ntfs_rename(struct mnt_idmap *idmap, struct inode *dir, 
		      1024);

	static_assert(PATH_MAX >= 4 * 1024);



	if (unlikely(ntfs3_forced_shutdown(sb)))

		return -EIO;



	if (flags & ~RENAME_NOREPLACE)

		return -EINVAL;

fs/ntfs3/ntfs_fs.h

+8 −1
Original line number Diff line number Diff line
@@ -61,6 +61,8 @@ enum utf16_endian; 


/* sbi->flags */

#define NTFS_FLAGS_NODISCARD		0x00000001

/* ntfs in shutdown state. */

#define NTFS_FLAGS_SHUTDOWN		0x00000002

/* Set when LogFile is replaying. */

#define NTFS_FLAGS_LOG_REPLAYING	0x00000008

/* Set when we changed first MFT's which copy must be updated in $MftMirr. */
@@ -226,7 +228,7 @@ struct ntfs_sb_info { 
	u64 maxbytes; // Maximum size for normal files.

	u64 maxbytes_sparse; // Maximum size for sparse file.



	u32 flags; // See NTFS_FLAGS_XXX.

	unsigned long flags; // See NTFS_FLAGS_



	CLST zone_max; // Maximum MFT zone length in clusters

	CLST bad_clusters; // The count of marked bad clusters.
@@ -999,6 +1001,11 @@ static inline struct ntfs_sb_info *ntfs_sb(struct super_block *sb) 
	return sb->s_fs_info;

}



static inline bool ntfs3_forced_shutdown(struct super_block *sb)

{

	return test_bit(NTFS_FLAGS_SHUTDOWN, &ntfs_sb(sb)->flags);

}



/*

 * ntfs_up_cluster - Align up on cluster boundary.

 */