aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--block/bdev.c2
-rw-r--r--fs/ioctl.c4
-rw-r--r--fs/netfs/buffered_write.c23
-rw-r--r--fs/ntfs3/Kconfig9
-rw-r--r--fs/ntfs3/dir.c7
-rw-r--r--fs/ntfs3/file.c8
-rw-r--r--fs/ntfs3/inode.c20
-rw-r--r--fs/ntfs3/ntfs_fs.h4
-rw-r--r--fs/ntfs3/super.c65
9 files changed, 121 insertions, 21 deletions
diff --git a/block/bdev.c b/block/bdev.c
index 4dc94145eb533..da2a167a4d08b 100644
--- a/block/bdev.c
+++ b/block/bdev.c
@@ -882,7 +882,7 @@ int bdev_open(struct block_device *bdev, blk_mode_t mode, void *holder,
goto abort_claiming;
ret = -EBUSY;
if (!bdev_may_open(bdev, mode))
- goto abort_claiming;
+ goto put_module;
if (bdev_is_partition(bdev))
ret = blkdev_get_part(bdev, mode);
else
diff --git a/fs/ioctl.c b/fs/ioctl.c
index 1d5abfdf0f22a..fb0628e680c40 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -769,7 +769,7 @@ static int ioctl_getfsuuid(struct file *file, void __user *argp)
struct fsuuid2 u = { .len = sb->s_uuid_len, };
if (!sb->s_uuid_len)
- return -ENOIOCTLCMD;
+ return -ENOTTY;
memcpy(&u.uuid[0], &sb->s_uuid, sb->s_uuid_len);
@@ -781,7 +781,7 @@ static int ioctl_get_fs_sysfs_path(struct file *file, void __user *argp)
struct super_block *sb = file_inode(file)->i_sb;
if (!strlen(sb->s_sysfs_name))
- return -ENOIOCTLCMD;
+ return -ENOTTY;
struct fs_sysfs_path u = {};
diff --git a/fs/netfs/buffered_write.c b/fs/netfs/buffered_write.c
index 9a0d32e4b422a..267b622d923b1 100644
--- a/fs/netfs/buffered_write.c
+++ b/fs/netfs/buffered_write.c
@@ -164,7 +164,7 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,
enum netfs_how_to_modify howto;
enum netfs_folio_trace trace;
unsigned int bdp_flags = (iocb->ki_flags & IOCB_SYNC) ? 0: BDP_ASYNC;
- ssize_t written = 0, ret;
+ ssize_t written = 0, ret, ret2;
loff_t i_size, pos = iocb->ki_pos, from, to;
size_t max_chunk = PAGE_SIZE << MAX_PAGECACHE_ORDER;
bool maybe_trouble = false;
@@ -172,15 +172,14 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,
if (unlikely(test_bit(NETFS_ICTX_WRITETHROUGH, &ctx->flags) ||
iocb->ki_flags & (IOCB_DSYNC | IOCB_SYNC))
) {
- if (pos < i_size_read(inode)) {
- ret = filemap_write_and_wait_range(mapping, pos, pos + iter->count);
- if (ret < 0) {
- goto out;
- }
- }
-
wbc_attach_fdatawrite_inode(&wbc, mapping->host);
+ ret = filemap_write_and_wait_range(mapping, pos, pos + iter->count);
+ if (ret < 0) {
+ wbc_detach_inode(&wbc);
+ goto out;
+ }
+
wreq = netfs_begin_writethrough(iocb, iter->count);
if (IS_ERR(wreq)) {
wbc_detach_inode(&wbc);
@@ -395,10 +394,12 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,
out:
if (unlikely(wreq)) {
- ret = netfs_end_writethrough(wreq, iocb);
+ ret2 = netfs_end_writethrough(wreq, iocb);
wbc_detach_inode(&wbc);
- if (ret == -EIOCBQUEUED)
- return ret;
+ if (ret2 == -EIOCBQUEUED)
+ return ret2;
+ if (ret == 0)
+ ret = ret2;
}
iocb->ki_pos += written;
diff --git a/fs/ntfs3/Kconfig b/fs/ntfs3/Kconfig
index cdfdf51e55d79..7bc31d69f680d 100644
--- a/fs/ntfs3/Kconfig
+++ b/fs/ntfs3/Kconfig
@@ -46,3 +46,12 @@ config NTFS3_FS_POSIX_ACL
NOTE: this is linux only feature. Windows will ignore these ACLs.
If you don't know what Access Control Lists are, say N.
+
+config NTFS_FS
+ tristate "NTFS file system support"
+ select NTFS3_FS
+ select BUFFER_HEAD
+ select NLS
+ help
+ This config option is here only for backward compatibility. NTFS
+ filesystem is now handled by the NTFS3 driver.
diff --git a/fs/ntfs3/dir.c b/fs/ntfs3/dir.c
index 5cf3d9decf646..263635199b60d 100644
--- a/fs/ntfs3/dir.c
+++ b/fs/ntfs3/dir.c
@@ -616,4 +616,11 @@ const struct file_operations ntfs_dir_operations = {
.compat_ioctl = ntfs_compat_ioctl,
#endif
};
+
+const struct file_operations ntfs_legacy_dir_operations = {
+ .llseek = generic_file_llseek,
+ .read = generic_read_dir,
+ .iterate_shared = ntfs_readdir,
+ .open = ntfs_file_open,
+};
// clang-format on
diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index 5418662c80d88..b73969e05052a 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -1236,4 +1236,12 @@ const struct file_operations ntfs_file_operations = {
.fallocate = ntfs_fallocate,
.release = ntfs_file_release,
};
+
+const struct file_operations ntfs_legacy_file_operations = {
+ .llseek = generic_file_llseek,
+ .read_iter = ntfs_file_read_iter,
+ .splice_read = ntfs_file_splice_read,
+ .open = ntfs_file_open,
+ .release = ntfs_file_release,
+};
// clang-format on
diff --git a/fs/ntfs3/inode.c b/fs/ntfs3/inode.c
index eb7a8c9fba018..d273eda1cf45d 100644
--- a/fs/ntfs3/inode.c
+++ b/fs/ntfs3/inode.c
@@ -440,7 +440,10 @@ end_enum:
* Usually a hard links to directories are disabled.
*/
inode->i_op = &ntfs_dir_inode_operations;
- inode->i_fop = &ntfs_dir_operations;
+ if (is_legacy_ntfs(inode->i_sb))
+ inode->i_fop = &ntfs_legacy_dir_operations;
+ else
+ inode->i_fop = &ntfs_dir_operations;
ni->i_valid = 0;
} else if (S_ISLNK(mode)) {
ni->std_fa &= ~FILE_ATTRIBUTE_DIRECTORY;
@@ -450,7 +453,10 @@ end_enum:
} else if (S_ISREG(mode)) {
ni->std_fa &= ~FILE_ATTRIBUTE_DIRECTORY;
inode->i_op = &ntfs_file_inode_operations;
- inode->i_fop = &ntfs_file_operations;
+ if (is_legacy_ntfs(inode->i_sb))
+ inode->i_fop = &ntfs_legacy_file_operations;
+ else
+ inode->i_fop = &ntfs_file_operations;
inode->i_mapping->a_ops = is_compressed(ni) ? &ntfs_aops_cmpr :
&ntfs_aops;
if (ino != MFT_REC_MFT)
@@ -1614,7 +1620,10 @@ struct inode *ntfs_create_inode(struct mnt_idmap *idmap, struct inode *dir,
if (S_ISDIR(mode)) {
inode->i_op = &ntfs_dir_inode_operations;
- inode->i_fop = &ntfs_dir_operations;
+ if (is_legacy_ntfs(inode->i_sb))
+ inode->i_fop = &ntfs_legacy_dir_operations;
+ else
+ inode->i_fop = &ntfs_dir_operations;
} else if (S_ISLNK(mode)) {
inode->i_op = &ntfs_link_inode_operations;
inode->i_fop = NULL;
@@ -1623,7 +1632,10 @@ struct inode *ntfs_create_inode(struct mnt_idmap *idmap, struct inode *dir,
inode_nohighmem(inode);
} else if (S_ISREG(mode)) {
inode->i_op = &ntfs_file_inode_operations;
- inode->i_fop = &ntfs_file_operations;
+ if (is_legacy_ntfs(inode->i_sb))
+ inode->i_fop = &ntfs_legacy_file_operations;
+ else
+ inode->i_fop = &ntfs_file_operations;
inode->i_mapping->a_ops = is_compressed(ni) ? &ntfs_aops_cmpr :
&ntfs_aops;
init_rwsem(&ni->file.run_lock);
diff --git a/fs/ntfs3/ntfs_fs.h b/fs/ntfs3/ntfs_fs.h
index 79356fd29a141..5f4d288c6adfb 100644
--- a/fs/ntfs3/ntfs_fs.h
+++ b/fs/ntfs3/ntfs_fs.h
@@ -493,6 +493,7 @@ struct inode *dir_search_u(struct inode *dir, const struct cpu_str *uni,
struct ntfs_fnd *fnd);
bool dir_is_empty(struct inode *dir);
extern const struct file_operations ntfs_dir_operations;
+extern const struct file_operations ntfs_legacy_dir_operations;
/* Globals from file.c */
int ntfs_getattr(struct mnt_idmap *idmap, const struct path *path,
@@ -507,6 +508,7 @@ long ntfs_compat_ioctl(struct file *filp, u32 cmd, unsigned long arg);
extern const struct inode_operations ntfs_special_inode_operations;
extern const struct inode_operations ntfs_file_inode_operations;
extern const struct file_operations ntfs_file_operations;
+extern const struct file_operations ntfs_legacy_file_operations;
/* Globals from frecord.c */
void ni_remove_mi(struct ntfs_inode *ni, struct mft_inode *mi);
@@ -1154,4 +1156,6 @@ static inline void le64_sub_cpu(__le64 *var, u64 val)
*var = cpu_to_le64(le64_to_cpu(*var) - val);
}
+bool is_legacy_ntfs(struct super_block *sb);
+
#endif /* _LINUX_NTFS3_NTFS_FS_H */
diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
index 9df7c20d066f6..b26d95a8d3274 100644
--- a/fs/ntfs3/super.c
+++ b/fs/ntfs3/super.c
@@ -408,6 +408,12 @@ static int ntfs_fs_reconfigure(struct fs_context *fc)
struct ntfs_mount_options *new_opts = fc->fs_private;
int ro_rw;
+ /* If ntfs3 is used as legacy ntfs enforce read-only mode. */
+ if (is_legacy_ntfs(sb)) {
+ fc->sb_flags |= SB_RDONLY;
+ goto out;
+ }
+
ro_rw = sb_rdonly(sb) && !(fc->sb_flags & SB_RDONLY);
if (ro_rw && (sbi->flags & NTFS_FLAGS_NEED_REPLAY)) {
errorf(fc,
@@ -427,8 +433,6 @@ static int ntfs_fs_reconfigure(struct fs_context *fc)
fc,
"ntfs3: Cannot use different iocharset when remounting!");
- sync_filesystem(sb);
-
if (ro_rw && (sbi->volume.flags & VOLUME_FLAG_DIRTY) &&
!new_opts->force) {
errorf(fc,
@@ -436,6 +440,8 @@ static int ntfs_fs_reconfigure(struct fs_context *fc)
return -EINVAL;
}
+out:
+ sync_filesystem(sb);
swap(sbi->options, fc->fs_private);
return 0;
@@ -1613,6 +1619,8 @@ load_root:
}
#endif
+ if (is_legacy_ntfs(sb))
+ sb->s_flags |= SB_RDONLY;
return 0;
put_inode_out:
@@ -1730,7 +1738,7 @@ static const struct fs_context_operations ntfs_context_ops = {
* This will called when mount/remount. We will first initialize
* options so that if remount we can use just that.
*/
-static int ntfs_init_fs_context(struct fs_context *fc)
+static int __ntfs_init_fs_context(struct fs_context *fc)
{
struct ntfs_mount_options *opts;
struct ntfs_sb_info *sbi;
@@ -1778,6 +1786,11 @@ free_opts:
return -ENOMEM;
}
+static int ntfs_init_fs_context(struct fs_context *fc)
+{
+ return __ntfs_init_fs_context(fc);
+}
+
static void ntfs3_kill_sb(struct super_block *sb)
{
struct ntfs_sb_info *sbi = sb->s_fs_info;
@@ -1798,6 +1811,50 @@ static struct file_system_type ntfs_fs_type = {
.kill_sb = ntfs3_kill_sb,
.fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP,
};
+
+#if IS_ENABLED(CONFIG_NTFS_FS)
+static int ntfs_legacy_init_fs_context(struct fs_context *fc)
+{
+ int ret;
+
+ ret = __ntfs_init_fs_context(fc);
+ /* If ntfs3 is used as legacy ntfs enforce read-only mode. */
+ fc->sb_flags |= SB_RDONLY;
+ return ret;
+}
+
+static struct file_system_type ntfs_legacy_fs_type = {
+ .owner = THIS_MODULE,
+ .name = "ntfs",
+ .init_fs_context = ntfs_legacy_init_fs_context,
+ .parameters = ntfs_fs_parameters,
+ .kill_sb = ntfs3_kill_sb,
+ .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP,
+};
+MODULE_ALIAS_FS("ntfs");
+
+static inline void register_as_ntfs_legacy(void)
+{
+ int err = register_filesystem(&ntfs_legacy_fs_type);
+ if (err)
+ pr_warn("ntfs3: Failed to register legacy ntfs filesystem driver: %d\n", err);
+}
+
+static inline void unregister_as_ntfs_legacy(void)
+{
+ unregister_filesystem(&ntfs_legacy_fs_type);
+}
+bool is_legacy_ntfs(struct super_block *sb)
+{
+ return sb->s_type == &ntfs_legacy_fs_type;
+}
+#else
+static inline void register_as_ntfs_legacy(void) {}
+static inline void unregister_as_ntfs_legacy(void) {}
+bool is_legacy_ntfs(struct super_block *sb) { return false; }
+#endif
+
+
// clang-format on
static int __init init_ntfs_fs(void)
@@ -1832,6 +1889,7 @@ static int __init init_ntfs_fs(void)
goto out1;
}
+ register_as_ntfs_legacy();
err = register_filesystem(&ntfs_fs_type);
if (err)
goto out;
@@ -1849,6 +1907,7 @@ static void __exit exit_ntfs_fs(void)
rcu_barrier();
kmem_cache_destroy(ntfs_inode_cachep);
unregister_filesystem(&ntfs_fs_type);
+ unregister_as_ntfs_legacy();
ntfs3_exit_bitmap();
#ifdef CONFIG_PROC_FS
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-19 23:01:18 +0000