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FIOBMAP2: inline vn_ioc_bmap2

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Reported by:	kib
Reviewed by:	kib
MFC after:	2 weeks
MFC-With:	349238
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D20783
This commit is contained in:
Alan Somers 2019-06-27 23:39:06 +00:00
parent b13625b573
commit 0cfc1ef38d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=349478
1 changed files with 12 additions and 21 deletions
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33
sys/kern/vfs_vnops.c
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@ -1457,25 +1457,6 @@ vn_stat(struct vnode *vp, struct stat *sb, struct ucred *active_cred,
return (0);
}
/* generic FIOBMAP2 implementation */
static int
vn_ioc_bmap2(struct file *fp, struct fiobmap2_arg *arg, struct ucred *cred)
{
struct vnode *vp = fp->f_vnode;
daddr_t lbn = arg->bn;
int error;
vn_lock(vp, LK_SHARED | LK_RETRY);
#ifdef MAC
error = mac_vnode_check_read(cred, fp->f_cred, vp);
if (error == 0)
#endif
error = VOP_BMAP(vp, lbn, NULL, &arg->bn, &arg->runp,
&arg->runb);
VOP_UNLOCK(vp, 0);
return (error);
}
/*
* File table vnode ioctl routine.
*/
@ -1485,6 +1466,7 @@ vn_ioctl(struct file *fp, u_long com, void *data, struct ucred *active_cred,
{
struct vattr vattr;
struct vnode *vp;
struct fiobmap2_arg *bmarg;
int error;
vp = fp->f_vnode;
@ -1500,8 +1482,17 @@ vn_ioctl(struct file *fp, u_long com, void *data, struct ucred *active_cred,
*(int *)data = vattr.va_size - fp->f_offset;
return (error);
case FIOBMAP2:
return (vn_ioc_bmap2(fp, (struct fiobmap2_arg*)data,
active_cred));
bmarg = (struct fiobmap2_arg *)data;
vn_lock(vp, LK_SHARED | LK_RETRY);
#ifdef MAC
error = mac_vnode_check_read(active_cred, fp->f_cred,
vp);
if (error == 0)
#endif
error = VOP_BMAP(vp, bmarg->bn, NULL,
&bmarg->bn, &bmarg->runp, &bmarg->runb);
VOP_UNLOCK(vp, 0);
return (error);
case FIONBIO:
case FIOASYNC:
return (0);