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[XFS] replace vn_get usage by ihold

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SGI-PV: 938306
SGI-Modid: xfs-linux:xfs-kern:194627a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
This commit is contained in:
Christoph Hellwig
2005-09-02 16:24:19 +10:00
committed by Nathan Scott
parent bb3f724e12
commit cdb626878f
4 changed files with 16 additions and 83 deletions
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21
fs/xfs/linux-2.6/xfs_vnode.h
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@@ -504,20 +504,6 @@ extern void vn_init(void);
extern int vn_wait(struct vnode *);
extern vnode_t *vn_initialize(struct inode *);
/*
* Acquiring and invalidating vnodes:
*
* if (vn_get(vp, version, 0))
* ...;
* vn_purge(vp, version);
*
* vn_get and vn_purge must be called with vmap_t arguments, sampled
* while a lock that the vnode's VOP_RECLAIM function acquires is
* held, to ensure that the vnode sampled with the lock held isn't
* recycled (VOP_RECLAIMed) or deallocated between the release of the lock
* and the subsequent vn_get or vn_purge.
*/
/*
* vnode_map structures _must_ match vn_epoch and vnode structure sizes.
*/
@@ -532,7 +518,6 @@ typedef struct vnode_map {
(vmap).v_ino = (vp)->v_inode.i_ino; }
extern void vn_purge(struct vnode *, vmap_t *);
extern vnode_t *vn_get(struct vnode *, vmap_t *);
extern int vn_revalidate(struct vnode *);
extern void vn_revalidate_core(struct vnode *, vattr_t *);
extern void vn_remove(struct vnode *);
@@ -560,6 +545,12 @@ extern void vn_rele(struct vnode *);
#define VN_RELE(vp) (iput(LINVFS_GET_IP(vp)))
#endif
static inline struct vnode *vn_grab(struct vnode *vp)
{
struct inode *inode = igrab(LINVFS_GET_IP(vp));
return inode ? LINVFS_GET_VP(inode) : NULL;
}
/*
* Vname handling macros.
*/