diff options
Diffstat (limited to 'fs/hostfs/hostfs_kern.c')
| -rw-r--r-- | fs/hostfs/hostfs_kern.c | 57 |
1 files changed, 22 insertions, 35 deletions
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index 2afa5bbccf9b..cddb05217512 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -7,6 +7,7 @@ */ #include <linux/fs.h> +#include <linux/magic.h> #include <linux/module.h> #include <linux/mm.h> #include <linux/pagemap.h> @@ -16,8 +17,8 @@ #include <linux/mount.h> #include <linux/namei.h> #include "hostfs.h" -#include "init.h" -#include "kern.h" +#include <init.h> +#include <kern.h> struct hostfs_inode_info { int fd; @@ -30,7 +31,7 @@ static inline struct hostfs_inode_info *HOSTFS_I(struct inode *inode) return list_entry(inode, struct hostfs_inode_info, vfs_inode); } -#define FILE_HOSTFS_I(file) HOSTFS_I((file)->f_path.dentry->d_inode) +#define FILE_HOSTFS_I(file) HOSTFS_I(file_inode(file)) static int hostfs_d_delete(const struct dentry *dentry) { @@ -45,8 +46,6 @@ static const struct dentry_operations hostfs_dentry_ops = { static char *root_ino = ""; static int append = 0; -#define HOSTFS_SUPER_MAGIC 0x00c0ffee - static const struct inode_operations hostfs_iops; static const struct inode_operations hostfs_dir_iops; static const struct inode_operations hostfs_link_iops; @@ -121,7 +120,7 @@ static char *dentry_name(struct dentry *dentry) if (!name) return NULL; - return __dentry_name(dentry, name); /* will unlock */ + return __dentry_name(dentry, name); } static char *inode_name(struct inode *ino) @@ -229,10 +228,11 @@ static struct inode *hostfs_alloc_inode(struct super_block *sb) { struct hostfs_inode_info *hi; - hi = kzalloc(sizeof(*hi), GFP_KERNEL); + hi = kmalloc(sizeof(*hi), GFP_KERNEL); if (hi == NULL) return NULL; hi->fd = -1; + hi->mode = 0; inode_init_once(&hi->vfs_inode); return &hi->vfs_inode; } @@ -277,7 +277,7 @@ static const struct super_operations hostfs_sbops = { .show_options = hostfs_show_options, }; -int hostfs_readdir(struct file *file, void *ent, filldir_t filldir) +int hostfs_readdir(struct file *file, struct dir_context *ctx) { void *dir; char *name; @@ -292,12 +292,11 @@ int hostfs_readdir(struct file *file, void *ent, filldir_t filldir) __putname(name); if (dir == NULL) return -error; - next = file->f_pos; + next = ctx->pos; while ((name = read_dir(dir, &next, &ino, &len, &type)) != NULL) { - error = (*filldir)(ent, name, len, file->f_pos, - ino, type); - if (error) break; - file->f_pos = next; + if (!dir_emit(ctx, name, len, ino, type)) + break; + ctx->pos = next; } close_dir(dir); return 0; @@ -393,7 +392,7 @@ static const struct file_operations hostfs_file_fops = { static const struct file_operations hostfs_dir_fops = { .llseek = generic_file_llseek, - .readdir = hostfs_readdir, + .iterate = hostfs_readdir, .read = generic_read_dir, }; @@ -542,8 +541,8 @@ static int read_name(struct inode *ino, char *name) ino->i_ino = st.ino; ino->i_mode = st.mode; set_nlink(ino, st.nlink); - ino->i_uid = st.uid; - ino->i_gid = st.gid; + i_uid_write(ino, st.uid); + i_gid_write(ino, st.gid); ino->i_atime = st.atime; ino->i_mtime = st.mtime; ino->i_ctime = st.ctime; @@ -553,7 +552,7 @@ static int read_name(struct inode *ino, char *name) } int hostfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, - struct nameidata *nd) + bool excl) { struct inode *inode; char *name; @@ -595,7 +594,7 @@ int hostfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, } struct dentry *hostfs_lookup(struct inode *ino, struct dentry *dentry, - struct nameidata *nd) + unsigned int flags) { struct inode *inode; char *name; @@ -808,11 +807,11 @@ int hostfs_setattr(struct dentry *dentry, struct iattr *attr) } if (attr->ia_valid & ATTR_UID) { attrs.ia_valid |= HOSTFS_ATTR_UID; - attrs.ia_uid = attr->ia_uid; + attrs.ia_uid = from_kuid(&init_user_ns, attr->ia_uid); } if (attr->ia_valid & ATTR_GID) { attrs.ia_valid |= HOSTFS_ATTR_GID; - attrs.ia_gid = attr->ia_gid; + attrs.ia_gid = from_kgid(&init_user_ns, attr->ia_gid); } if (attr->ia_valid & ATTR_SIZE) { attrs.ia_valid |= HOSTFS_ATTR_SIZE; @@ -845,13 +844,8 @@ int hostfs_setattr(struct dentry *dentry, struct iattr *attr) return err; if ((attr->ia_valid & ATTR_SIZE) && - attr->ia_size != i_size_read(inode)) { - int error; - - error = vmtruncate(inode, attr->ia_size); - if (err) - return err; - } + attr->ia_size != i_size_read(inode)) + truncate_setsize(inode, attr->ia_size); setattr_copy(inode, attr); mark_inode_dirty(inode); @@ -859,14 +853,6 @@ int hostfs_setattr(struct dentry *dentry, struct iattr *attr) } static const struct inode_operations hostfs_iops = { - .create = hostfs_create, - .link = hostfs_link, - .unlink = hostfs_unlink, - .symlink = hostfs_symlink, - .mkdir = hostfs_mkdir, - .rmdir = hostfs_rmdir, - .mknod = hostfs_mknod, - .rename = hostfs_rename, .permission = hostfs_permission, .setattr = hostfs_setattr, }; @@ -999,6 +985,7 @@ static struct file_system_type hostfs_type = { .kill_sb = hostfs_kill_sb, .fs_flags = 0, }; +MODULE_ALIAS_FS("hostfs"); static int __init init_hostfs(void) { |