uml: hostfs style fixes

hostfs needed some style goodness.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jeff Dike 2007-05-08 00:23:18 -07:00 committed by Linus Torvalds
parent 5822b7faca
commit f1adc05e77
3 changed files with 167 additions and 171 deletions

View file

@ -87,14 +87,3 @@ extern int do_statfs(char *root, long *bsize_out, long long *blocks_out,
long *spare_out);
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

View file

@ -1,5 +1,5 @@
/*
* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*
* Ported the filesystem routines to 2.5.
@ -31,14 +31,14 @@ struct hostfs_inode_info {
static inline struct hostfs_inode_info *HOSTFS_I(struct inode *inode)
{
return(list_entry(inode, struct hostfs_inode_info, vfs_inode));
return list_entry(inode, struct hostfs_inode_info, vfs_inode);
}
#define FILE_HOSTFS_I(file) HOSTFS_I((file)->f_path.dentry->d_inode)
int hostfs_d_delete(struct dentry *dentry)
{
return(1);
return 1;
}
struct dentry_operations hostfs_dentry_ops = {
@ -79,7 +79,7 @@ static int __init hostfs_args(char *options, int *add)
}
options = ptr;
}
return(0);
return 0;
}
__uml_setup("hostfs=", hostfs_args,
@ -110,7 +110,8 @@ static char *dentry_name(struct dentry *dentry, int extra)
root = HOSTFS_I(parent->d_inode)->host_filename;
len += strlen(root);
name = kmalloc(len + extra + 1, GFP_KERNEL);
if(name == NULL) return(NULL);
if(name == NULL)
return NULL;
name[len] = '\0';
parent = dentry;
@ -122,7 +123,7 @@ static char *dentry_name(struct dentry *dentry, int extra)
parent = parent->d_parent;
}
strncpy(name, root, strlen(root));
return(name);
return name;
}
static char *inode_name(struct inode *ino, int extra)
@ -130,7 +131,7 @@ static char *inode_name(struct inode *ino, int extra)
struct dentry *dentry;
dentry = list_entry(ino->i_dentry.next, struct dentry, d_alias);
return(dentry_name(dentry, extra));
return dentry_name(dentry, extra);
}
static int read_name(struct inode *ino, char *name)
@ -149,14 +150,14 @@ static int read_name(struct inode *ino, char *name)
&ino->i_gid, &i_size, &ino->i_atime, &ino->i_mtime,
&ino->i_ctime, &i_blksize, &i_blocks, -1);
if(err)
return(err);
return err;
ino->i_ino = i_ino;
ino->i_mode = i_mode;
ino->i_nlink = i_nlink;
ino->i_size = i_size;
ino->i_blocks = i_blocks;
return(0);
return 0;
}
static char *follow_link(char *link)
@ -181,11 +182,11 @@ static char *follow_link(char *link)
goto out_free;
if(*name == '/')
return(name);
return name;
end = strrchr(link, '/');
if(end == NULL)
return(name);
return name;
*(end + 1) = '\0';
len = strlen(link) + strlen(name) + 1;
@ -199,12 +200,12 @@ static char *follow_link(char *link)
sprintf(resolved, "%s%s", link, name);
kfree(name);
kfree(link);
return(resolved);
return resolved;
out_free:
kfree(name);
out:
return(ERR_PTR(n));
return ERR_PTR(n);
}
static int read_inode(struct inode *ino)
@ -234,7 +235,7 @@ static int read_inode(struct inode *ino)
err = read_name(ino, name);
kfree(name);
out:
return(err);
return err;
}
int hostfs_statfs(struct dentry *dentry, struct kstatfs *sf)
@ -254,14 +255,15 @@ int hostfs_statfs(struct dentry *dentry, struct kstatfs *sf)
&sf->f_bsize, &f_blocks, &f_bfree, &f_bavail, &f_files,
&f_ffree, &sf->f_fsid, sizeof(sf->f_fsid),
&sf->f_namelen, sf->f_spare);
if(err) return(err);
if(err)
return err;
sf->f_blocks = f_blocks;
sf->f_bfree = f_bfree;
sf->f_bavail = f_bavail;
sf->f_files = f_files;
sf->f_ffree = f_ffree;
sf->f_type = HOSTFS_SUPER_MAGIC;
return(0);
return 0;
}
static struct inode *hostfs_alloc_inode(struct super_block *sb)
@ -270,13 +272,13 @@ static struct inode *hostfs_alloc_inode(struct super_block *sb)
hi = kmalloc(sizeof(*hi), GFP_KERNEL);
if(hi == NULL)
return(NULL);
return NULL;
*hi = ((struct hostfs_inode_info) { .host_filename = NULL,
.fd = -1,
.mode = 0 });
inode_init_once(&hi->vfs_inode);
return(&hi->vfs_inode);
return &hi->vfs_inode;
}
static void hostfs_delete_inode(struct inode *inode)
@ -325,10 +327,12 @@ int hostfs_readdir(struct file *file, void *ent, filldir_t filldir)
int error, len;
name = dentry_name(file->f_path.dentry, 0);
if(name == NULL) return(-ENOMEM);
if(name == NULL)
return -ENOMEM;
dir = open_dir(name, &error);
kfree(name);
if(dir == NULL) return(-error);
if(dir == NULL)
return -error;
next = file->f_pos;
while((name = read_dir(dir, &next, &ino, &len)) != NULL){
error = (*filldir)(ent, name, len, file->f_pos,
@ -337,7 +341,7 @@ int hostfs_readdir(struct file *file, void *ent, filldir_t filldir)
file->f_pos = next;
}
close_dir(dir);
return(0);
return 0;
}
int hostfs_file_open(struct inode *ino, struct file *file)
@ -347,7 +351,7 @@ int hostfs_file_open(struct inode *ino, struct file *file)
mode = file->f_mode & (FMODE_READ | FMODE_WRITE);
if((mode & HOSTFS_I(ino)->mode) == mode)
return(0);
return 0;
/* The file may already have been opened, but with the wrong access,
* so this resets things and reopens the file with the new access.
@ -367,14 +371,15 @@ int hostfs_file_open(struct inode *ino, struct file *file)
name = dentry_name(file->f_path.dentry, 0);
if(name == NULL)
return(-ENOMEM);
return -ENOMEM;
fd = open_file(name, r, w, append);
kfree(name);
if(fd < 0) return(fd);
if(fd < 0)
return fd;
FILE_HOSTFS_I(file)->fd = fd;
return(0);
return 0;
}
int hostfs_fsync(struct file *file, struct dentry *dentry, int datasync)
@ -458,7 +463,7 @@ int hostfs_readpage(struct file *file, struct page *page)
out:
kunmap(page);
unlock_page(page);
return(err);
return err;
}
int hostfs_prepare_write(struct file *file, struct page *page,
@ -485,7 +490,7 @@ int hostfs_prepare_write(struct file *file, struct page *page,
err = 0;
out:
kunmap(page);
return(err);
return err;
}
int hostfs_commit_write(struct file *file, struct page *page, unsigned from,
@ -511,7 +516,7 @@ int hostfs_commit_write(struct file *file, struct page *page, unsigned from,
inode->i_size = start;
kunmap(page);
return(err);
return err;
}
static const struct address_space_operations hostfs_aops = {
@ -569,7 +574,7 @@ static int init_inode(struct inode *inode, struct dentry *dentry)
break;
}
out:
return(err);
return err;
}
int hostfs_create(struct inode *dir, struct dentry *dentry, int mode,
@ -607,16 +612,16 @@ int hostfs_create(struct inode *dir, struct dentry *dentry, int mode,
HOSTFS_I(inode)->fd = fd;
HOSTFS_I(inode)->mode = FMODE_READ | FMODE_WRITE;
d_instantiate(dentry, inode);
return(0);
return 0;
out_put:
iput(inode);
out:
return(error);
return error;
}
struct dentry *hostfs_lookup(struct inode *ino, struct dentry *dentry,
struct nameidata *nd)
struct nameidata *nd)
{
struct inode *inode;
char *name;
@ -647,44 +652,45 @@ struct dentry *hostfs_lookup(struct inode *ino, struct dentry *dentry,
d_add(dentry, inode);
dentry->d_op = &hostfs_dentry_ops;
return(NULL);
return NULL;
out_put:
iput(inode);
out:
return(ERR_PTR(err));
return ERR_PTR(err);
}
static char *inode_dentry_name(struct inode *ino, struct dentry *dentry)
{
char *file;
char *file;
int len;
file = inode_name(ino, dentry->d_name.len + 1);
if(file == NULL) return(NULL);
strcat(file, "/");
if(file == NULL)
return NULL;
strcat(file, "/");
len = strlen(file);
strncat(file, dentry->d_name.name, dentry->d_name.len);
strncat(file, dentry->d_name.name, dentry->d_name.len);
file[len + dentry->d_name.len] = '\0';
return(file);
return file;
}
int hostfs_link(struct dentry *to, struct inode *ino, struct dentry *from)
{
char *from_name, *to_name;
int err;
char *from_name, *to_name;
int err;
if((from_name = inode_dentry_name(ino, from)) == NULL)
return(-ENOMEM);
to_name = dentry_name(to, 0);
if((from_name = inode_dentry_name(ino, from)) == NULL)
return -ENOMEM;
to_name = dentry_name(to, 0);
if(to_name == NULL){
kfree(from_name);
return(-ENOMEM);
return -ENOMEM;
}
err = link_file(to_name, from_name);
kfree(from_name);
kfree(to_name);
return(err);
err = link_file(to_name, from_name);
kfree(from_name);
kfree(to_name);
return err;
}
int hostfs_unlink(struct inode *ino, struct dentry *dentry)
@ -692,13 +698,14 @@ int hostfs_unlink(struct inode *ino, struct dentry *dentry)
char *file;
int err;
if((file = inode_dentry_name(ino, dentry)) == NULL) return(-ENOMEM);
if((file = inode_dentry_name(ino, dentry)) == NULL)
return -ENOMEM;
if(append)
return(-EPERM);
return -EPERM;
err = unlink_file(file);
kfree(file);
return(err);
return err;
}
int hostfs_symlink(struct inode *ino, struct dentry *dentry, const char *to)
@ -706,10 +713,11 @@ int hostfs_symlink(struct inode *ino, struct dentry *dentry, const char *to)
char *file;
int err;
if((file = inode_dentry_name(ino, dentry)) == NULL) return(-ENOMEM);
if((file = inode_dentry_name(ino, dentry)) == NULL)
return -ENOMEM;
err = make_symlink(file, to);
kfree(file);
return(err);
return err;
}
int hostfs_mkdir(struct inode *ino, struct dentry *dentry, int mode)
@ -717,10 +725,11 @@ int hostfs_mkdir(struct inode *ino, struct dentry *dentry, int mode)
char *file;
int err;
if((file = inode_dentry_name(ino, dentry)) == NULL) return(-ENOMEM);
if((file = inode_dentry_name(ino, dentry)) == NULL)
return -ENOMEM;
err = do_mkdir(file, mode);
kfree(file);
return(err);
return err;
}
int hostfs_rmdir(struct inode *ino, struct dentry *dentry)
@ -728,10 +737,11 @@ int hostfs_rmdir(struct inode *ino, struct dentry *dentry)
char *file;
int err;
if((file = inode_dentry_name(ino, dentry)) == NULL) return(-ENOMEM);
if((file = inode_dentry_name(ino, dentry)) == NULL)
return -ENOMEM;
err = do_rmdir(file);
kfree(file);
return(err);
return err;
}
int hostfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
@ -764,14 +774,14 @@ int hostfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
goto out_put;
d_instantiate(dentry, inode);
return(0);
return 0;
out_free:
kfree(name);
out_put:
iput(inode);
out:
return(err);
return err;
}
int hostfs_rename(struct inode *from_ino, struct dentry *from,
@ -781,15 +791,15 @@ int hostfs_rename(struct inode *from_ino, struct dentry *from,
int err;
if((from_name = inode_dentry_name(from_ino, from)) == NULL)
return(-ENOMEM);
return -ENOMEM;
if((to_name = inode_dentry_name(to_ino, to)) == NULL){
kfree(from_name);
return(-ENOMEM);
return -ENOMEM;
}
err = rename_file(from_name, to_name);
kfree(from_name);
kfree(to_name);
return(err);
return err;
}
int hostfs_permission(struct inode *ino, int desired, struct nameidata *nd)
@ -801,7 +811,8 @@ int hostfs_permission(struct inode *ino, int desired, struct nameidata *nd)
if (desired & MAY_WRITE) w = 1;
if (desired & MAY_EXEC) x = 1;
name = inode_name(ino, 0);
if (name == NULL) return(-ENOMEM);
if (name == NULL)
return -ENOMEM;
if (S_ISCHR(ino->i_mode) || S_ISBLK(ino->i_mode) ||
S_ISFIFO(ino->i_mode) || S_ISSOCK(ino->i_mode))
@ -865,20 +876,21 @@ int hostfs_setattr(struct dentry *dentry, struct iattr *attr)
attrs.ia_valid |= HOSTFS_ATTR_MTIME_SET;
}
name = dentry_name(dentry, 0);
if(name == NULL) return(-ENOMEM);
if(name == NULL)
return -ENOMEM;
err = set_attr(name, &attrs, fd);
kfree(name);
if(err)
return(err);
return err;
return(inode_setattr(dentry->d_inode, attr));
return inode_setattr(dentry->d_inode, attr);
}
int hostfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
struct kstat *stat)
{
generic_fillattr(dentry->d_inode, stat);
return(0);
return 0;
}
static const struct inode_operations hostfs_iops = {
@ -917,7 +929,8 @@ int hostfs_link_readpage(struct file *file, struct page *page)
buffer = kmap(page);
name = inode_name(page->mapping->host, 0);
if(name == NULL) return(-ENOMEM);
if(name == NULL)
return -ENOMEM;
err = do_readlink(name, buffer, PAGE_CACHE_SIZE);
kfree(name);
if(err == PAGE_CACHE_SIZE)
@ -930,7 +943,7 @@ int hostfs_link_readpage(struct file *file, struct page *page)
}
kunmap(page);
unlock_page(page);
return(err);
return err;
}
static const struct address_space_operations hostfs_link_aops = {
@ -980,20 +993,20 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent)
err = read_inode(root_inode);
if(err){
/* No iput in this case because the dput does that for us */
dput(sb->s_root);
sb->s_root = NULL;
/* No iput in this case because the dput does that for us */
dput(sb->s_root);
sb->s_root = NULL;
goto out;
}
}
return(0);
return 0;
out_put:
iput(root_inode);
out_free:
out_put:
iput(root_inode);
out_free:
kfree(host_root_path);
out:
return(err);
out:
return err;
}
static int hostfs_read_sb(struct file_system_type *type,
@ -1013,7 +1026,7 @@ static struct file_system_type hostfs_type = {
static int __init init_hostfs(void)
{
return(register_filesystem(&hostfs_type));
return register_filesystem(&hostfs_type);
}
static void __exit exit_hostfs(void)
@ -1024,14 +1037,3 @@ static void __exit exit_hostfs(void)
module_init(init_hostfs)
module_exit(exit_hostfs)
MODULE_LICENSE("GPL");
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

View file

@ -1,5 +1,5 @@
/*
* Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
@ -27,9 +27,9 @@ int stat_file(const char *path, unsigned long long *inode_out, int *mode_out,
if(fd >= 0) {
if (fstat64(fd, &buf) < 0)
return(-errno);
return -errno;
} else if(lstat64(path, &buf) < 0) {
return(-errno);
return -errno;
}
if(inode_out != NULL) *inode_out = buf.st_ino;
@ -52,7 +52,7 @@ int stat_file(const char *path, unsigned long long *inode_out, int *mode_out,
}
if(blksize_out != NULL) *blksize_out = buf.st_blksize;
if(blocks_out != NULL) *blocks_out = buf.st_blocks;
return(0);
return 0;
}
int file_type(const char *path, int *maj, int *min)
@ -60,7 +60,7 @@ int file_type(const char *path, int *maj, int *min)
struct stat64 buf;
if(lstat64(path, &buf) < 0)
return(-errno);
return -errno;
/*We cannot pass rdev as is because glibc and the kernel disagree
*about its definition.*/
if(maj != NULL)
@ -68,13 +68,13 @@ int file_type(const char *path, int *maj, int *min)
if(min != NULL)
*min = 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);
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)
@ -84,8 +84,9 @@ int access_file(char *path, int r, int w, int x)
if(r) mode = R_OK;
if(w) mode |= W_OK;
if(x) mode |= X_OK;
if(access(path, mode) != 0) return(-errno);
else return(0);
if(access(path, mode) != 0)
return -errno;
else return 0;
}
int open_file(char *path, int r, int w, int append)
@ -103,8 +104,9 @@ int open_file(char *path, int r, int w, int append)
if(append)
mode |= O_APPEND;
fd = open64(path, mode);
if(fd < 0) return(-errno);
else return(fd);
if(fd < 0)
return -errno;
else return fd;
}
void *open_dir(char *path, int *err_out)
@ -113,8 +115,9 @@ void *open_dir(char *path, int *err_out)
dir = opendir(path);
*err_out = errno;
if(dir == NULL) return(NULL);
return(dir);
if(dir == NULL)
return NULL;
return dir;
}
char *read_dir(void *stream, unsigned long long *pos,
@ -125,11 +128,12 @@ char *read_dir(void *stream, unsigned long long *pos,
seekdir(dir, *pos);
ent = readdir(dir);
if(ent == NULL) return(NULL);
if(ent == NULL)
return NULL;
*len_out = strlen(ent->d_name);
*ino_out = ent->d_ino;
*pos = telldir(dir);
return(ent->d_name);
return ent->d_name;
}
int read_file(int fd, unsigned long long *offset, char *buf, int len)
@ -137,9 +141,10 @@ int read_file(int fd, unsigned long long *offset, char *buf, int len)
int n;
n = pread64(fd, buf, len, *offset);
if(n < 0) return(-errno);
if(n < 0)
return -errno;
*offset += n;
return(n);
return n;
}
int write_file(int fd, unsigned long long *offset, const char *buf, int len)
@ -147,9 +152,10 @@ int write_file(int fd, unsigned long long *offset, const char *buf, int len)
int n;
n = pwrite64(fd, buf, len, *offset);
if(n < 0) return(-errno);
if(n < 0)
return -errno;
*offset += n;
return(n);
return n;
}
int lseek_file(int fd, long long offset, int whence)
@ -158,8 +164,8 @@ int lseek_file(int fd, long long offset, int whence)
ret = lseek64(fd, offset, whence);
if(ret < 0)
return(-errno);
return(0);
return -errno;
return 0;
}
int fsync_file(int fd, int datasync)
@ -202,8 +208,8 @@ int file_create(char *name, int ur, int uw, int ux, int gr,
mode |= ox ? S_IXOTH : 0;
fd = open64(name, O_CREAT | O_RDWR, mode);
if(fd < 0)
return(-errno);
return(fd);
return -errno;
return fd;
}
int set_attr(const char *file, struct hostfs_iattr *attrs, int fd)
@ -217,31 +223,31 @@ int set_attr(const char *file, struct hostfs_iattr *attrs, int fd)
if (fchmod(fd, attrs->ia_mode) != 0)
return (-errno);
} else if (chmod(file, attrs->ia_mode) != 0) {
return (-errno);
return -errno;
}
}
if (attrs->ia_valid & HOSTFS_ATTR_UID) {
if (fd >= 0) {
if (fchown(fd, attrs->ia_uid, -1))
return (-errno);
return -errno;
} else if(chown(file, attrs->ia_uid, -1)) {
return (-errno);
return -errno;
}
}
if (attrs->ia_valid & HOSTFS_ATTR_GID) {
if (fd >= 0) {
if (fchown(fd, -1, attrs->ia_gid))
return (-errno);
return -errno;
} else if (chown(file, -1, attrs->ia_gid)) {
return (-errno);
return -errno;
}
}
if (attrs->ia_valid & HOSTFS_ATTR_SIZE) {
if (fd >= 0) {
if (ftruncate(fd, attrs->ia_size))
return (-errno);
return -errno;
} else if (truncate(file, attrs->ia_size)) {
return (-errno);
return -errno;
}
}
@ -271,9 +277,9 @@ int set_attr(const char *file, struct hostfs_iattr *attrs, int fd)
if (fd >= 0) {
if (futimes(fd, times) != 0)
return (-errno);
return -errno;
} else if (utimes(file, times) != 0) {
return (-errno);
return -errno;
}
}
@ -282,9 +288,10 @@ int set_attr(const char *file, struct hostfs_iattr *attrs, int fd)
err = stat_file(file, NULL, NULL, NULL, NULL, NULL, NULL,
&attrs->ia_atime, &attrs->ia_mtime, NULL,
NULL, NULL, fd);
if(err != 0) return(err);
if(err != 0)
return err;
}
return(0);
return 0;
}
int make_symlink(const char *from, const char *to)
@ -292,8 +299,9 @@ int make_symlink(const char *from, const char *to)
int err;
err = symlink(to, from);
if(err) return(-errno);
return(0);
if(err)
return -errno;
return 0;
}
int unlink_file(const char *file)
@ -301,8 +309,9 @@ int unlink_file(const char *file)
int err;
err = unlink(file);
if(err) return(-errno);
return(0);
if(err)
return -errno;
return 0;
}
int do_mkdir(const char *file, int mode)
@ -310,8 +319,9 @@ int do_mkdir(const char *file, int mode)
int err;
err = mkdir(file, mode);
if(err) return(-errno);
return(0);
if(err)
return -errno;
return 0;
}
int do_rmdir(const char *file)
@ -319,8 +329,9 @@ int do_rmdir(const char *file)
int err;
err = rmdir(file);
if(err) return(-errno);
return(0);
if(err)
return -errno;
return 0;
}
int do_mknod(const char *file, int mode, unsigned int major, unsigned int minor)
@ -328,8 +339,9 @@ int do_mknod(const char *file, int mode, unsigned int major, unsigned int minor)
int err;
err = mknod(file, mode, makedev(major, minor));
if(err) return(-errno);
return(0);
if(err)
return -errno;
return 0;
}
int link_file(const char *to, const char *from)
@ -337,8 +349,9 @@ int link_file(const char *to, const char *from)
int err;
err = link(to, from);
if(err) return(-errno);
return(0);
if(err)
return -errno;
return 0;
}
int do_readlink(char *file, char *buf, int size)
@ -347,10 +360,10 @@ int do_readlink(char *file, char *buf, int size)
n = readlink(file, buf, size);
if(n < 0)
return(-errno);
return -errno;
if(n < size)
buf[n] = '\0';
return(n);
return n;
}
int rename_file(char *from, char *to)
@ -358,8 +371,9 @@ int rename_file(char *from, char *to)
int err;
err = rename(from, to);
if(err < 0) return(-errno);
return(0);
if(err < 0)
return -errno;
return 0;
}
int do_statfs(char *root, long *bsize_out, long long *blocks_out,
@ -372,7 +386,9 @@ int do_statfs(char *root, long *bsize_out, long long *blocks_out,
int err;
err = statfs64(root, &buf);
if(err < 0) return(-errno);
if(err < 0)
return -errno;
*bsize_out = buf.f_bsize;
*blocks_out = buf.f_blocks;
*bfree_out = buf.f_bfree;
@ -388,16 +404,5 @@ int do_statfs(char *root, long *bsize_out, long long *blocks_out,
spare_out[2] = buf.f_spare[2];
spare_out[3] = buf.f_spare[3];
spare_out[4] = buf.f_spare[4];
return(0);
return 0;
}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/