Differential D22548 Diff 65072 head/sys/fs/devfs/devfs_devs.c

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head/sys/fs/devfs/devfs_devs.c

Show First 20 Lines • Show All 132 Lines • ▼ Show 20 Lines	devfs_alloc(int flags)
struct cdev *cdev;		struct cdev *cdev;
struct timespec ts;		struct timespec ts;

cdp = malloc(sizeof *cdp, M_CDEVP, M_ZERO \|		cdp = malloc(sizeof *cdp, M_CDEVP, M_ZERO \|
((flags & MAKEDEV_NOWAIT) ? M_NOWAIT : M_WAITOK));		((flags & MAKEDEV_NOWAIT) ? M_NOWAIT : M_WAITOK));
if (cdp == NULL)		if (cdp == NULL)
return (NULL);		return (NULL);

		mtx_init(&cdp->cdp_threadlock, "devthrd", NULL, MTX_DEF);

cdp->cdp_dirents = &cdp->cdp_dirent0;		cdp->cdp_dirents = &cdp->cdp_dirent0;

cdev = &cdp->cdp_c;		cdev = &cdp->cdp_c;
LIST_INIT(&cdev->si_children);		LIST_INIT(&cdev->si_children);
vfs_timestamp(&ts);		vfs_timestamp(&ts);
cdev->si_atime = cdev->si_mtime = cdev->si_ctime = ts;		cdev->si_atime = cdev->si_mtime = cdev->si_ctime = ts;

return (cdev);		return (cdev);
Show All 26 Lines	devfs_free(struct cdev *cdev)
struct cdev_priv *cdp;		struct cdev_priv *cdp;

cdp = cdev2priv(cdev);		cdp = cdev2priv(cdev);
if (cdev->si_cred != NULL)		if (cdev->si_cred != NULL)
crfree(cdev->si_cred);		crfree(cdev->si_cred);
devfs_free_cdp_inode(cdp->cdp_inode);		devfs_free_cdp_inode(cdp->cdp_inode);
if (cdp->cdp_maxdirent > 0)		if (cdp->cdp_maxdirent > 0)
free(cdp->cdp_dirents, M_DEVFS2);		free(cdp->cdp_dirents, M_DEVFS2);
		mtx_destroy(&cdp->cdp_threadlock);
free(cdp, M_CDEVP);		free(cdp, M_CDEVP);
}		}

struct devfs_dirent *		struct devfs_dirent *
devfs_find(struct devfs_dirent dd, const char name, int namelen, int type)		devfs_find(struct devfs_dirent dd, const char name, int namelen, int type)
{		{
struct devfs_dirent *de;		struct devfs_dirent *de;

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