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[PATCH] uml: implement hostfs syncing 

Actually implement the hostfs "sync" method.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paolo 'Blaisorblade' Giarrusso 2005-07-28 21:16:15 -07:00 committed by Linus Torvalds
parent 30f417c65e
commit a2d76bd8fa
4 changed files with 20 additions and 2 deletions
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3
arch/um/os-Linux/user_syms.c
View File

@ -83,6 +83,9 @@ EXPORT_SYMBOL_PROTO(statfs64);
EXPORT_SYMBOL_PROTO(getuid);
EXPORT_SYMBOL_PROTO(fsync);
EXPORT_SYMBOL_PROTO(fdatasync);
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically

1
fs/hostfs/hostfs.h
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@ -69,6 +69,7 @@ extern int read_file(int fd, unsigned long long *offset, char *buf, int len);
extern int write_file(int fd, unsigned long long *offset, const char *buf,
int len);
extern int lseek_file(int fd, long long offset, int whence);
extern int fsync_file(int fd, int datasync);
extern int file_create(char *name, int ur, int uw, int ux, int gr,
int gw, int gx, int or, int ow, int ox);
extern int set_attr(const char *file, struct hostfs_iattr *attrs);

2
fs/hostfs/hostfs_kern.c
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@ -382,7 +382,7 @@ int hostfs_file_open(struct inode *ino, struct file *file)
int hostfs_fsync(struct file *file, struct dentry *dentry, int datasync)
{
return(0);
return fsync_file(HOSTFS_I(dentry->d_inode)->fd, datasync);
}
static struct file_operations hostfs_file_fops = {

16
fs/hostfs/hostfs_user.c
View File

@ -153,10 +153,24 @@ int lseek_file(int fd, long long offset, int whence)
int ret;
ret = lseek64(fd, offset, whence);
if(ret < 0) return(-errno);
if(ret < 0)
return(-errno);
return(0);
}
int fsync_file(int fd, int datasync)
{
int ret;
if (datasync)
ret = fdatasync(fd);
else
ret = fsync(fd);
if (ret < 0)
return -errno;
return 0;
}
void close_file(void *stream)
{
close(*((int *) stream));