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Diffstat (limited to 'fs/hostfs')
-rw-r--r--fs/hostfs/hostfs.h1
-rw-r--r--fs/hostfs/hostfs_kern.c107
-rw-r--r--fs/hostfs/hostfs_user.c30
3 files changed, 45 insertions, 93 deletions
diff --git a/fs/hostfs/hostfs.h b/fs/hostfs/hostfs.h
index 3a52edef994..ea87e224ed9 100644
--- a/fs/hostfs/hostfs.h
+++ b/fs/hostfs/hostfs.h
@@ -70,7 +70,6 @@ struct hostfs_stat {
extern int stat_file(const char *path, struct hostfs_stat *p, int fd);
extern int access_file(char *path, int r, int w, int x);
extern int open_file(char *path, int r, int w, int append);
-extern int file_type(const char *path, int *maj, int *min);
extern void *open_dir(char *path, int *err_out);
extern char *read_dir(void *stream, unsigned long long *pos,
unsigned long long *ino_out, int *len_out);
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 420a826ae0f..b29a2b878f4 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -129,26 +129,6 @@ static char *inode_name(struct inode *ino, int extra)
return dentry_name(dentry, extra);
}
-static int read_name(struct inode *ino, char *name)
-{
- struct hostfs_stat st;
- int err = stat_file(name, &st, -1);
- if (err)
- return err;
-
- ino->i_ino = st.ino;
- ino->i_mode = st.mode;
- ino->i_nlink = st.nlink;
- ino->i_uid = st.uid;
- ino->i_gid = st.gid;
- ino->i_atime = st.atime;
- ino->i_mtime = st.mtime;
- ino->i_ctime = st.ctime;
- ino->i_size = st.size;
- ino->i_blocks = st.blocks;
- return 0;
-}
-
static char *follow_link(char *link)
{
int len, n;
@@ -478,43 +458,51 @@ static const struct address_space_operations hostfs_aops = {
.write_end = hostfs_write_end,
};
-static void init_inode(struct inode *inode, char *path)
+static int read_name(struct inode *ino, char *name)
{
- int type;
- int maj, min;
- dev_t rdev = 0;
+ dev_t rdev;
+ struct hostfs_stat st;
+ int err = stat_file(name, &st, -1);
+ if (err)
+ return err;
- type = file_type(path, &maj, &min);
/* Reencode maj and min with the kernel encoding.*/
- rdev = MKDEV(maj, min);
+ rdev = MKDEV(st.maj, st.min);
- if (type == OS_TYPE_SYMLINK)
- inode->i_op = &page_symlink_inode_operations;
- else if (type == OS_TYPE_DIR)
- inode->i_op = &hostfs_dir_iops;
- else inode->i_op = &hostfs_iops;
-
- if (type == OS_TYPE_DIR) inode->i_fop = &hostfs_dir_fops;
- else inode->i_fop = &hostfs_file_fops;
-
- if (type == OS_TYPE_SYMLINK)
- inode->i_mapping->a_ops = &hostfs_link_aops;
- else inode->i_mapping->a_ops = &hostfs_aops;
-
- switch (type) {
- case OS_TYPE_CHARDEV:
- init_special_inode(inode, S_IFCHR, rdev);
- break;
- case OS_TYPE_BLOCKDEV:
- init_special_inode(inode, S_IFBLK, rdev);
+ switch (st.mode & S_IFMT) {
+ case S_IFLNK:
+ ino->i_op = &page_symlink_inode_operations;
+ ino->i_mapping->a_ops = &hostfs_link_aops;
break;
- case OS_TYPE_FIFO:
- init_special_inode(inode, S_IFIFO, 0);
+ case S_IFDIR:
+ ino->i_op = &hostfs_dir_iops;
+ ino->i_fop = &hostfs_dir_fops;
break;
- case OS_TYPE_SOCK:
- init_special_inode(inode, S_IFSOCK, 0);
+ case S_IFCHR:
+ case S_IFBLK:
+ case S_IFIFO:
+ case S_IFSOCK:
+ init_special_inode(ino, st.mode & S_IFMT, rdev);
+ ino->i_op = &hostfs_iops;
break;
+
+ default:
+ ino->i_op = &hostfs_iops;
+ ino->i_fop = &hostfs_file_fops;
+ ino->i_mapping->a_ops = &hostfs_aops;
}
+
+ ino->i_ino = st.ino;
+ ino->i_mode = st.mode;
+ ino->i_nlink = st.nlink;
+ ino->i_uid = st.uid;
+ ino->i_gid = st.gid;
+ ino->i_atime = st.atime;
+ ino->i_mtime = st.mtime;
+ ino->i_ctime = st.ctime;
+ ino->i_size = st.size;
+ ino->i_blocks = st.blocks;
+ return 0;
}
int hostfs_create(struct inode *dir, struct dentry *dentry, int mode,
@@ -539,12 +527,10 @@ int hostfs_create(struct inode *dir, struct dentry *dentry, int mode,
mode & S_IRUSR, mode & S_IWUSR, mode & S_IXUSR,
mode & S_IRGRP, mode & S_IWGRP, mode & S_IXGRP,
mode & S_IROTH, mode & S_IWOTH, mode & S_IXOTH);
- if (fd < 0) {
+ if (fd < 0)
error = fd;
- } else {
+ else
error = read_name(inode, name);
- init_inode(inode, name);
- }
kfree(name);
if (error)
@@ -580,7 +566,6 @@ struct dentry *hostfs_lookup(struct inode *ino, struct dentry *dentry,
goto out_put;
err = read_name(inode, name);
- init_inode(inode, name);
kfree(name);
if (err == -ENOENT) {
@@ -707,7 +692,6 @@ int hostfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
goto out_free;
err = read_name(inode, name);
- init_inode(inode, name);
if (err)
goto out_put;
kfree(name);
@@ -922,21 +906,20 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent)
if (!root_inode)
goto out;
- root_inode->i_op = &hostfs_dir_iops;
- root_inode->i_fop = &hostfs_dir_fops;
+ err = read_name(root_inode, host_root_path);
+ if (err)
+ goto out_put;
- if (file_type(host_root_path, NULL, NULL) == OS_TYPE_SYMLINK) {
+ if (S_ISLNK(root_inode->i_mode)) {
char *name = follow_link(host_root_path);
if (IS_ERR(name))
err = PTR_ERR(name);
else
err = read_name(root_inode, name);
kfree(name);
- } else {
- err = read_name(root_inode, host_root_path);
+ if (err)
+ goto out_put;
}
- if (err)
- goto out_put;
err = -ENOMEM;
sb->s_root = d_alloc_root(root_inode);
diff --git a/fs/hostfs/hostfs_user.c b/fs/hostfs/hostfs_user.c
index 701d454a679..91ebfcefa40 100644
--- a/fs/hostfs/hostfs_user.c
+++ b/fs/hostfs/hostfs_user.c
@@ -53,36 +53,6 @@ int stat_file(const char *path, struct hostfs_stat *p, int fd)
return 0;
}
-int file_type(const char *path, int *maj, int *min)
-{
- struct stat64 buf;
-
- if (lstat64(path, &buf) < 0)
- return -errno;
- /*
- * We cannot pass rdev as is because glibc and the kernel disagree
- * about its definition.
- */
- if (maj != NULL)
- *maj = os_major(buf.st_rdev);
- if (min != NULL)
- *min = os_minor(buf.st_rdev);
-
- if (S_ISDIR(buf.st_mode))
- return OS_TYPE_DIR;
- else if (S_ISLNK(buf.st_mode))
- return OS_TYPE_SYMLINK;
- else if (S_ISCHR(buf.st_mode))
- return OS_TYPE_CHARDEV;
- else if (S_ISBLK(buf.st_mode))
- return OS_TYPE_BLOCKDEV;
- else if (S_ISFIFO(buf.st_mode))
- return OS_TYPE_FIFO;
- else if (S_ISSOCK(buf.st_mode))
- return OS_TYPE_SOCK;
- else return OS_TYPE_FILE;
-}
-
int access_file(char *path, int r, int w, int x)
{
int mode = 0;
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-14 03:19:58 +0000