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Try to update attributes for volume roots when they become available,

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under Linux with fakestat.
This commit is contained in:
Nickolai Zeldovich 2002-07-20 09:12:23 +00:00
parent e2fcfb88a2
commit 349c211789
2 changed files with 27 additions and 3 deletions
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10
src/afs/LINUX/osi_vfsops.c
View File

@ -463,3 +463,13 @@ void vcache2inode(struct vcache *avc)
VATTR_NULL(&vattr);
afs_CopyOutAttrs(avc, &vattr); /* calls vattr2inode */
}
/* Yet another one for fakestat'ed mountpoints */
void vcache2fakeinode(struct vcache *rootvp, struct vcache *mpvp)
{
struct vattr vattr;
VATTR_NULL(&vattr);
afs_CopyOutAttrs(rootvp, &vattr);
vattr2inode(AFSTOV(mpvp), &vattr);
}

20
src/afs/LINUX/osi_vnodeops.c
View File

@ -42,6 +42,7 @@ RCSID("$Header$");
#endif
extern struct vcache *afs_globalVp;
extern afs_rwlock_t afs_xvcache;
extern struct dentry_operations *afs_dops;
#if defined(AFS_LINUX24_ENV)
@ -763,20 +764,33 @@ static int afs_linux_revalidate(struct dentry *dp)
cred_t *credp;
struct vrequest treq;
struct vcache *vcp = ITOAFS(dp->d_inode);
struct vcache *rootvp = NULL;
AFS_GLOCK();
if (afs_fakestat_enable && vcp->mvstat == 1 && vcp->mvid &&
(vcp->states & CMValid) && (vcp->states & CStatd)) {
ObtainSharedLock(&afs_xvcache, 680);
rootvp = afs_FindVCache(vcp->mvid, 0, 0, 0, 0);
ReleaseSharedLock(&afs_xvcache);
}
#ifdef AFS_LINUX24_ENV
lock_kernel();
#endif
/* Make this a fast path (no crref), since it's called so often. */
if (vcp->states & CStatd) {
if (*dp->d_name.name != '/' && vcp->mvstat == 2) /* root vnode */
if (*dp->d_name.name != '/' && vcp->mvstat == 2) /* root vnode */
check_bad_parent(dp); /* check and correct mvid */
vcache2inode(vcp);
if (rootvp)
vcache2fakeinode(rootvp, vcp);
else
vcache2inode(vcp);
#ifdef AFS_LINUX24_ENV
unlock_kernel();
#endif
if (rootvp) afs_PutVCache(rootvp);
AFS_GUNLOCK();
return 0;
}
@ -893,7 +907,7 @@ static int afs_linux_dentry_revalidate(struct dentry *dp)
unsigned long timeout = 3*HZ; /* 3 seconds */
if (!ip)
if (!ip)
printk("negative dentry: %s\n", dp->d_name.name);
if (!(flags & LOOKUP_CONTINUE)) {