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Added internal syscalls for fs_read_info() and fs_write_info().

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4494 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2003-09-04 04:19:24 +00:00
parent 318ea28beb
commit db310cf12e
1 changed files with 63 additions and 4 deletions
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67
src/kernel/core/fs/vfs.c
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@ -3407,7 +3407,7 @@ fs_read_info(dev_t device, struct fs_info *info)
mount = find_mount(device);
if (mount == NULL) {
status = EINVAL;
goto error;
goto out;
}
if (FS_MOUNT_CALL(mount, read_fs_info))
@ -3419,7 +3419,7 @@ fs_read_info(dev_t device, struct fs_info *info)
info->dev = mount->id;
info->root = mount->root_vnode->id;
error:
out:
mutex_unlock(&gMountMutex);
return status;
}
@ -3436,7 +3436,7 @@ fs_write_info(dev_t device, const struct fs_info *info, int mask)
mount = find_mount(device);
if (mount == NULL) {
status = EINVAL;
goto error;
goto out;
}
if (FS_MOUNT_CALL(mount, write_fs_info))
@ -3444,7 +3444,7 @@ fs_write_info(dev_t device, const struct fs_info *info, int mask)
else
status = EROFS;
error:
out:
mutex_unlock(&gMountMutex);
return status;
}
@ -3542,6 +3542,26 @@ sys_unmount(const char *path)
}
status_t
_kern_read_fs_info(dev_t device, struct fs_info *info)
{
if (info == NULL)
return B_BAD_VALUE;
return fs_read_info(device, info);
}
status_t
_kern_write_fs_info(dev_t device, const struct fs_info *info, int mask)
{
if (info == NULL)
return B_BAD_VALUE;
return fs_write_info(device, info, mask);
}
int
sys_sync(void)
{
@ -3906,6 +3926,45 @@ user_unmount(const char *userPath)
}
status_t
_user_read_fs_info(dev_t device, struct fs_info *userInfo)
{
struct fs_info info;
status_t status;
if (userInfo == NULL)
return B_BAD_VALUE;
if (!CHECK_USER_ADDRESS(userInfo))
return B_BAD_ADDRESS;
status = fs_read_info(device, &info);
if (status != B_OK)
return status;
if (user_memcpy(userInfo, &info, sizeof(struct fs_info)) < B_OK)
return B_BAD_ADDRESS;
return B_OK;
}
status_t
_user_write_fs_info(dev_t device, const struct fs_info *userInfo, int mask)
{
struct fs_info info;
if (userInfo == NULL)
return B_BAD_VALUE;
if (!CHECK_USER_ADDRESS(userInfo)
|| user_memcpy(&info, userInfo, sizeof(struct fs_info)) < B_OK)
return B_BAD_ADDRESS;
return fs_write_info(device, &info, mask);
}
int
user_sync(void)
{