diff options
Diffstat (limited to 'fs/ntfs')
| -rw-r--r-- | fs/ntfs/ChangeLog | 3 | ||||
| -rw-r--r-- | fs/ntfs/namei.c | 31 | ||||
| -rw-r--r-- | fs/ntfs/ntfs.h | 2 | ||||
| -rw-r--r-- | fs/ntfs/super.c | 34 |
4 files changed, 34 insertions, 36 deletions
diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog index bfd86c5cc48..cf21e0571b6 100644 --- a/fs/ntfs/ChangeLog +++ b/fs/ntfs/ChangeLog @@ -81,6 +81,9 @@ ToDo/Notes: mft record for resident attributes (fs/ntfs/inode.c). - Small readability cleanup to use "a" instead of "ctx->attr" everywhere (fs/ntfs/inode.c). + - Make fs/ntfs/namei.c::ntfs_get_{parent,dentry} static and move the + definition of ntfs_export_ops from fs/ntfs/super.c to namei.c. Also, + declare ntfs_export_ops in fs/ntfs/ntfs.h. 2.1.22 - Many bug and race fixes and error handling improvements. diff --git a/fs/ntfs/namei.c b/fs/ntfs/namei.c index 7c7e13b43b2..d261e25bd9b 100644 --- a/fs/ntfs/namei.c +++ b/fs/ntfs/namei.c @@ -380,7 +380,7 @@ struct inode_operations ntfs_dir_inode_ops = { * Return the dentry of the parent directory on success or the error code on * error (IS_ERR() is true). */ -struct dentry *ntfs_get_parent(struct dentry *child_dent) +static struct dentry *ntfs_get_parent(struct dentry *child_dent) { struct inode *vi = child_dent->d_inode; ntfs_inode *ni = NTFS_I(vi); @@ -465,7 +465,7 @@ try_next: * * Return the dentry on success or the error code on error (IS_ERR() is true). */ -struct dentry *ntfs_get_dentry(struct super_block *sb, void *fh) +static struct dentry *ntfs_get_dentry(struct super_block *sb, void *fh) { struct inode *vi; struct dentry *dent; @@ -496,3 +496,30 @@ struct dentry *ntfs_get_dentry(struct super_block *sb, void *fh) ntfs_debug("Done for inode 0x%lx, generation 0x%x.", ino, gen); return dent; } + +/** + * Export operations allowing NFS exporting of mounted NTFS partitions. + * + * We use the default ->decode_fh() and ->encode_fh() for now. Note that they + * use 32 bits to store the inode number which is an unsigned long so on 64-bit + * architectures is usually 64 bits so it would all fail horribly on huge + * volumes. I guess we need to define our own encode and decode fh functions + * that store 64-bit inode numbers at some point but for now we will ignore the + * problem... + * + * We also use the default ->get_name() helper (used by ->decode_fh() via + * fs/exportfs/expfs.c::find_exported_dentry()) as that is completely fs + * independent. + * + * The default ->get_parent() just returns -EACCES so we have to provide our + * own and the default ->get_dentry() is incompatible with NTFS due to not + * allowing the inode number 0 which is used in NTFS for the system file $MFT + * and due to using iget() whereas NTFS needs ntfs_iget(). + */ +struct export_operations ntfs_export_ops = { + .get_parent = ntfs_get_parent, /* Find the parent of a given + directory. */ + .get_dentry = ntfs_get_dentry, /* Find a dentry for the inode + given a file handle + sub-fragment. */ +}; diff --git a/fs/ntfs/ntfs.h b/fs/ntfs/ntfs.h index 720ffb71bab..a0bf706797b 100644 --- a/fs/ntfs/ntfs.h +++ b/fs/ntfs/ntfs.h @@ -65,6 +65,8 @@ extern struct inode_operations ntfs_dir_inode_ops; extern struct file_operations ntfs_empty_file_ops; extern struct inode_operations ntfs_empty_inode_ops; +extern struct export_operations ntfs_export_ops; + /** * NTFS_SB - return the ntfs volume given a vfs super block * @sb: VFS super block diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c index b676cf6fd93..78416eb2a16 100644 --- a/fs/ntfs/super.c +++ b/fs/ntfs/super.c @@ -2250,40 +2250,6 @@ static struct super_operations ntfs_sops = { proc. */ }; - -/** - * Declarations for NTFS specific export operations (fs/ntfs/namei.c). - */ -extern struct dentry *ntfs_get_parent(struct dentry *child_dent); -extern struct dentry *ntfs_get_dentry(struct super_block *sb, void *fh); - -/** - * Export operations allowing NFS exporting of mounted NTFS partitions. - * - * We use the default ->decode_fh() and ->encode_fh() for now. Note that they - * use 32 bits to store the inode number which is an unsigned long so on 64-bit - * architectures is usually 64 bits so it would all fail horribly on huge - * volumes. I guess we need to define our own encode and decode fh functions - * that store 64-bit inode numbers at some point but for now we will ignore the - * problem... - * - * We also use the default ->get_name() helper (used by ->decode_fh() via - * fs/exportfs/expfs.c::find_exported_dentry()) as that is completely fs - * independent. - * - * The default ->get_parent() just returns -EACCES so we have to provide our - * own and the default ->get_dentry() is incompatible with NTFS due to not - * allowing the inode number 0 which is used in NTFS for the system file $MFT - * and due to using iget() whereas NTFS needs ntfs_iget(). - */ -static struct export_operations ntfs_export_ops = { - .get_parent = ntfs_get_parent, /* Find the parent of a given - directory. */ - .get_dentry = ntfs_get_dentry, /* Find a dentry for the inode - given a file handle - sub-fragment. */ -}; - /** * ntfs_fill_super - mount an ntfs filesystem * @sb: super block of ntfs filesystem to mount |