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Add vn_mode_to_vtype/vn_vtype to_mode helpers

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Add simple helpers to convert a vnode->v_type to a inode->i_mode.
These should be used sparingly but they are handy to have.
This commit is contained in:
Brian Behlendorf 2011-01-11 11:53:05 -08:00
parent 3f688a8c38
commit 4295b530ee
3 changed files with 41 additions and 6 deletions
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4
include/sys/mode.h
View File

@ -25,4 +25,8 @@
#ifndef _SPL_MODE_H #ifndef _SPL_MODE_H
#define _SPL_MODE_H #define _SPL_MODE_H
#define IFTOVT(mode) vn_mode_to_vtype(mode)
#define VTTOIF(vtype) vn_vtype_to_mode(vtype)
#define MAKEIMODE(T, M) (VTTOIF(T) | ((M) & ~S_IFMT))
#endif /* SPL_MODE_H */ #endif /* SPL_MODE_H */

2
include/sys/vnode.h
View File

@ -202,6 +202,8 @@ typedef struct caller_context {
extern vnode_t *vn_alloc(int flag); extern vnode_t *vn_alloc(int flag);
void vn_free(vnode_t *vp); void vn_free(vnode_t *vp);
extern vtype_t vn_mode_to_vtype(mode_t);
extern mode_t vn_vtype_to_mode(vtype_t);
extern int vn_open(const char *path, uio_seg_t seg, int flags, int mode, extern int vn_open(const char *path, uio_seg_t seg, int flags, int mode,
vnode_t **vpp, int x1, void *x2); vnode_t **vpp, int x1, void *x2);
extern int vn_openat(const char *path, uio_seg_t seg, int flags, int mode, extern int vn_openat(const char *path, uio_seg_t seg, int flags, int mode,

41
module/spl/spl-vnode.c
View File

@ -42,8 +42,8 @@ static spl_kmem_cache_t *vn_file_cache;
static spinlock_t vn_file_lock = SPIN_LOCK_UNLOCKED; static spinlock_t vn_file_lock = SPIN_LOCK_UNLOCKED;
static LIST_HEAD(vn_file_list); static LIST_HEAD(vn_file_list);
static vtype_t vtype_t
vn_get_sol_type(umode_t mode) vn_mode_to_vtype(mode_t mode)
{ {
if (S_ISREG(mode)) if (S_ISREG(mode))
return VREG; return VREG;
@ -70,7 +70,36 @@ vn_get_sol_type(umode_t mode)
return VCHR; return VCHR;
return VNON; return VNON;
} /* vn_get_sol_type() */ } /* vn_mode_to_vtype() */
EXPORT_SYMBOL(vn_mode_to_vtype);
mode_t
vn_vtype_to_mode(vtype_t vtype)
{
if (vtype == VREG)
return S_IFREG;
if (vtype == VDIR)
return S_IFDIR;
if (vtype == VCHR)
return S_IFCHR;
if (vtype == VBLK)
return S_IFBLK;
if (vtype == VFIFO)
return S_IFIFO;
if (vtype == VLNK)
return S_IFLNK;
if (vtype == VSOCK)
return S_IFSOCK;
return VNON;
} /* vn_vtype_to_mode() */
EXPORT_SYMBOL(vn_vtype_to_mode);
vnode_t * vnode_t *
vn_alloc(int flag) vn_alloc(int flag)
@ -150,7 +179,7 @@ vn_open(const char *path, uio_seg_t seg, int flags, int mode,
mapping_set_gfp_mask(fp->f_mapping, saved_gfp & ~(__GFP_IO|__GFP_FS)); mapping_set_gfp_mask(fp->f_mapping, saved_gfp & ~(__GFP_IO|__GFP_FS));
mutex_enter(&vp->v_lock); mutex_enter(&vp->v_lock);
vp->v_type = vn_get_sol_type(stat.mode); vp->v_type = vn_mode_to_vtype(stat.mode);
vp->v_file = fp; vp->v_file = fp;
vp->v_gfp_mask = saved_gfp; vp->v_gfp_mask = saved_gfp;
*vpp = vp; *vpp = vp;
@ -439,7 +468,7 @@ vn_getattr(vnode_t *vp, vattr_t *vap, int flags, void *x3, void *x4)
if (rc) if (rc)
SRETURN(-rc); SRETURN(-rc);
vap->va_type = vn_get_sol_type(stat.mode); vap->va_type = vn_mode_to_vtype(stat.mode);
vap->va_mode = stat.mode; vap->va_mode = stat.mode;
vap->va_uid = stat.uid; vap->va_uid = stat.uid;
vap->va_gid = stat.gid; vap->va_gid = stat.gid;
@ -539,7 +568,7 @@ vn_getf(int fd)
SGOTO(out_vnode, rc); SGOTO(out_vnode, rc);
mutex_enter(&vp->v_lock); mutex_enter(&vp->v_lock);
vp->v_type = vn_get_sol_type(stat.mode); vp->v_type = vn_mode_to_vtype(stat.mode);
vp->v_file = lfp; vp->v_file = lfp;
mutex_exit(&vp->v_lock); mutex_exit(&vp->v_lock);