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pass a struct path to vfs_statfs

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We'll need the path to implement the flags field for statvfs support.
We do have it available in all callers except:

 - ecryptfs_statfs.  This one doesn't actually need vfs_statfs but just
   needs to do a caller to the lower filesystem statfs method.
 - sys_ustat.  Add a non-exported statfs_by_dentry helper for it which
   doesn't won't be able to fill out the flags field later on.

In addition rename the helpers for statfs vs fstatfs to do_*statfs instead
of the misleading vfs prefix.

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Christoph Hellwig 2010-07-07 18:53:11 +02:00 • committed by Al Viro
commit ebabe9a900
11 changed files with 67 additions and 46 deletions
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8
arch/alpha/kernel/osf_sys.c
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@ -234,11 +234,11 @@ linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_st
}
static int
do_osf_statfs(struct dentry * dentry, struct osf_statfs __user *buffer,
do_osf_statfs(struct path *path, struct osf_statfs __user *buffer,
unsigned long bufsiz)
{
struct kstatfs linux_stat;
int error = vfs_statfs(dentry, &linux_stat);
int error = vfs_statfs(path, &linux_stat);
if (!error)
error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz);
return error;
@ -252,7 +252,7 @@ SYSCALL_DEFINE3(osf_statfs, char __user *, pathname,
retval = user_path(pathname, &path);
if (!retval) {
retval = do_osf_statfs(path.dentry, buffer, bufsiz);
retval = do_osf_statfs(&path buffer, bufsiz);
path_put(&path);
}
return retval;
@ -267,7 +267,7 @@ SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd,
retval = -EBADF;
file = fget(fd);
if (file) {
retval = do_osf_statfs(file->f_path.dentry, buffer, bufsiz);
retval = do_osf_statfs(&file->f_path, buffer, bufsiz);
fput(file);
}
return retval;