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[XFS] add infrastructure for waiting on I/O completion at inode reclaim

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SGI-PV: 934766
SGI-Modid: xfs-linux:xfs-kern:196854a

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 16:58:38 +10:00
committed by Nathan Scott
parent 592cb26bda
commit 51c91ed52b
4 changed files with 32 additions and 58 deletions
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4
fs/xfs/linux-2.6/xfs_vnode.h
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@@ -80,6 +80,7 @@ typedef struct vnode {
vnumber_t v_number; /* in-core vnode number */
vn_bhv_head_t v_bh; /* behavior head */
spinlock_t v_lock; /* VN_LOCK/VN_UNLOCK */
atomic_t v_iocount; /* outstanding I/O count */
#ifdef XFS_VNODE_TRACE
struct ktrace *v_trace; /* trace header structure */
#endif
@@ -506,6 +507,9 @@ extern int vn_revalidate(struct vnode *);
extern void vn_revalidate_core(struct vnode *, vattr_t *);
extern void vn_remove(struct vnode *);
extern void vn_iowait(struct vnode *vp);
extern void vn_iowake(struct vnode *vp);
static inline int vn_count(struct vnode *vp)
{
return atomic_read(&LINVFS_GET_IP(vp)->i_count);