*/
STATIC int
xfs_iget_core(
- bhv_vnode_t *vp,
+ struct inode *inode,
xfs_mount_t *mp,
xfs_trans_t *tp,
xfs_ino_t ino,
xfs_inode_t **ipp,
xfs_daddr_t bno)
{
+ struct inode *old_inode;
xfs_inode_t *ip;
xfs_inode_t *iq;
- bhv_vnode_t *inode_vp;
int error;
- xfs_icluster_t *icl, *new_icl = NULL;
unsigned long first_index, mask;
xfs_perag_t *pag;
xfs_agino_t agino;
goto again;
}
- inode_vp = XFS_ITOV_NULL(ip);
- if (inode_vp == NULL) {
+ old_inode = ip->i_vnode;
+ if (old_inode == NULL) {
/*
* If IRECLAIM is set this inode is
* on its way out of the system,
return ENOENT;
}
- /*
- * There may be transactions sitting in the
- * incore log buffers or being flushed to disk
- * at this time. We can't clear the
- * XFS_IRECLAIMABLE flag until these
- * transactions have hit the disk, otherwise we
- * will void the guarantee the flag provides
- * xfs_iunpin()
- */
- if (xfs_ipincount(ip)) {
- read_unlock(&pag->pag_ici_lock);
- xfs_log_force(mp, 0,
- XFS_LOG_FORCE|XFS_LOG_SYNC);
- XFS_STATS_INC(xs_ig_frecycle);
- goto again;
- }
-
- vn_trace_exit(ip, "xfs_iget.alloc",
- (inst_t *)__return_address);
+ xfs_itrace_exit_tag(ip, "xfs_iget.alloc");
XFS_STATS_INC(xs_ig_found);
-
xfs_iflags_clear(ip, XFS_IRECLAIMABLE);
read_unlock(&pag->pag_ici_lock);
goto finish_inode;
- } else if (vp != inode_vp) {
- struct inode *inode = vn_to_inode(inode_vp);
-
+ } else if (inode != old_inode) {
/* The inode is being torn down, pause and
* try again.
*/
- if (inode->i_state & (I_FREEING | I_CLEAR)) {
+ if (old_inode->i_state & (I_FREEING | I_CLEAR)) {
read_unlock(&pag->pag_ici_lock);
delay(1);
XFS_STATS_INC(xs_ig_frecycle);
*/
cmn_err(CE_PANIC,
"xfs_iget_core: ambiguous vns: vp/0x%p, invp/0x%p",
- inode_vp, vp);
+ old_inode, inode);
}
/*
XFS_STATS_INC(xs_ig_found);
finish_inode:
- if (ip->i_d.di_mode == 0) {
- if (!(flags & XFS_IGET_CREATE)) {
- xfs_put_perag(mp, pag);
- return ENOENT;
- }
- xfs_iocore_inode_reinit(ip);
+ if (ip->i_d.di_mode == 0 && !(flags & XFS_IGET_CREATE)) {
+ xfs_put_perag(mp, pag);
+ return ENOENT;
}
if (lock_flags != 0)
xfs_ilock(ip, lock_flags);
xfs_iflags_clear(ip, XFS_ISTALE);
- vn_trace_exit(ip, "xfs_iget.found",
- (inst_t *)__return_address);
+ xfs_itrace_exit_tag(ip, "xfs_iget.found");
goto return_ip;
}
return error;
}
- vn_trace_exit(ip, "xfs_iget.alloc", (inst_t *)__return_address);
+ xfs_itrace_exit_tag(ip, "xfs_iget.alloc");
+
+
+ mrlock_init(&ip->i_lock, MRLOCK_ALLOW_EQUAL_PRI|MRLOCK_BARRIER,
+ "xfsino", ip->i_ino);
+ mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino);
+ init_waitqueue_head(&ip->i_ipin_wait);
+ atomic_set(&ip->i_pincount, 0);
+ initnsema(&ip->i_flock, 1, "xfsfino");
- xfs_inode_lock_init(ip, vp);
- xfs_iocore_inode_init(ip);
if (lock_flags)
xfs_ilock(ip, lock_flags);
}
/*
- * This is a bit messy - we preallocate everything we _might_
- * need before we pick up the ici lock. That way we don't have to
- * juggle locks and go all the way back to the start.
+ * Preload the radix tree so we can insert safely under the
+ * write spinlock.
*/
- new_icl = kmem_zone_alloc(xfs_icluster_zone, KM_SLEEP);
if (radix_tree_preload(GFP_KERNEL)) {
+ xfs_idestroy(ip);
delay(1);
goto again;
}
mask = ~(((XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_inodelog)) - 1);
first_index = agino & mask;
write_lock(&pag->pag_ici_lock);
-
- /*
- * Find the cluster if it exists
- */
- icl = NULL;
- if (radix_tree_gang_lookup(&pag->pag_ici_root, (void**)&iq,
- first_index, 1)) {
- if ((iq->i_ino & mask) == first_index)
- icl = iq->i_cluster;
- }
-
/*
* insert the new inode
*/
}
/*
- * These values _must_ be set before releasing ihlock!
+ * These values _must_ be set before releasing the radix tree lock!
*/
ip->i_udquot = ip->i_gdquot = NULL;
xfs_iflags_set(ip, XFS_INEW);
- ASSERT(ip->i_cluster == NULL);
-
- if (!icl) {
- spin_lock_init(&new_icl->icl_lock);
- INIT_HLIST_HEAD(&new_icl->icl_inodes);
- icl = new_icl;
- new_icl = NULL;
- } else {
- ASSERT(!hlist_empty(&icl->icl_inodes));
- }
- spin_lock(&icl->icl_lock);
- hlist_add_head(&ip->i_cnode, &icl->icl_inodes);
- ip->i_cluster = icl;
- spin_unlock(&icl->icl_lock);
-
write_unlock(&pag->pag_ici_lock);
radix_tree_preload_end();
- if (new_icl)
- kmem_zone_free(xfs_icluster_zone, new_icl);
/*
* Link ip to its mount and thread it on the mount's inode list.
ASSERT(ip->i_df.if_ext_max ==
XFS_IFORK_DSIZE(ip) / sizeof(xfs_bmbt_rec_t));
- ASSERT(((ip->i_d.di_flags & XFS_DIFLAG_REALTIME) != 0) ==
- ((ip->i_iocore.io_flags & XFS_IOCORE_RT) != 0));
-
xfs_iflags_set(ip, XFS_IMODIFIED);
*ipp = ip;
* If we have a real type for an on-disk inode, we can set ops(&unlock)
* now. If it's a new inode being created, xfs_ialloc will handle it.
*/
- xfs_initialize_vnode(mp, vp, ip);
+ xfs_initialize_vnode(mp, inode, ip);
return 0;
}
xfs_daddr_t bno)
{
struct inode *inode;
- bhv_vnode_t *vp = NULL;
+ xfs_inode_t *ip;
int error;
XFS_STATS_INC(xs_ig_attempts);
retry:
- inode = iget_locked(XFS_MTOVFS(mp)->vfs_super, ino);
- if (inode) {
- xfs_inode_t *ip;
-
- vp = vn_from_inode(inode);
- if (inode->i_state & I_NEW) {
- vn_initialize(inode);
- error = xfs_iget_core(vp, mp, tp, ino, flags,
- lock_flags, ipp, bno);
- if (error) {
- vn_mark_bad(vp);
- if (inode->i_state & I_NEW)
- unlock_new_inode(inode);
- iput(inode);
- }
- } else {
- /*
- * If the inode is not fully constructed due to
- * filehandle mismatches wait for the inode to go
- * away and try again.
- *
- * iget_locked will call __wait_on_freeing_inode
- * to wait for the inode to go away.
- */
- if (is_bad_inode(inode) ||
- ((ip = xfs_vtoi(vp)) == NULL)) {
- iput(inode);
- delay(1);
- goto retry;
- }
-
- if (lock_flags != 0)
- xfs_ilock(ip, lock_flags);
- XFS_STATS_INC(xs_ig_found);
- *ipp = ip;
- error = 0;
+ inode = iget_locked(mp->m_super, ino);
+ if (!inode)
+ /* If we got no inode we are out of memory */
+ return ENOMEM;
+
+ if (inode->i_state & I_NEW) {
+ XFS_STATS_INC(vn_active);
+ XFS_STATS_INC(vn_alloc);
+
+ error = xfs_iget_core(inode, mp, tp, ino, flags,
+ lock_flags, ipp, bno);
+ if (error) {
+ make_bad_inode(inode);
+ if (inode->i_state & I_NEW)
+ unlock_new_inode(inode);
+ iput(inode);
}
- } else
- error = ENOMEM; /* If we got no inode we are out of memory */
+ return error;
+ }
- return error;
-}
+ /*
+ * If the inode is not fully constructed due to
+ * filehandle mismatches wait for the inode to go
+ * away and try again.
+ *
+ * iget_locked will call __wait_on_freeing_inode
+ * to wait for the inode to go away.
+ */
+ if (is_bad_inode(inode)) {
+ iput(inode);
+ delay(1);
+ goto retry;
+ }
-/*
- * Do the setup for the various locks within the incore inode.
- */
-void
-xfs_inode_lock_init(
- xfs_inode_t *ip,
- bhv_vnode_t *vp)
-{
- mrlock_init(&ip->i_lock, MRLOCK_ALLOW_EQUAL_PRI|MRLOCK_BARRIER,
- "xfsino", ip->i_ino);
- mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino);
- init_waitqueue_head(&ip->i_ipin_wait);
- atomic_set(&ip->i_pincount, 0);
- initnsema(&ip->i_flock, 1, "xfsfino");
+ ip = XFS_I(inode);
+ if (!ip) {
+ iput(inode);
+ delay(1);
+ goto retry;
+ }
+
+ if (lock_flags != 0)
+ xfs_ilock(ip, lock_flags);
+ XFS_STATS_INC(xs_ig_found);
+ *ipp = ip;
+ return 0;
}
/*
xfs_iput(xfs_inode_t *ip,
uint lock_flags)
{
- bhv_vnode_t *vp = XFS_ITOV(ip);
-
- vn_trace_entry(ip, "xfs_iput", (inst_t *)__return_address);
+ xfs_itrace_entry(ip);
xfs_iunlock(ip, lock_flags);
- VN_RELE(vp);
+ IRELE(ip);
}
/*
xfs_iput_new(xfs_inode_t *ip,
uint lock_flags)
{
- bhv_vnode_t *vp = XFS_ITOV(ip);
- struct inode *inode = vn_to_inode(vp);
+ struct inode *inode = ip->i_vnode;
- vn_trace_entry(ip, "xfs_iput_new", (inst_t *)__return_address);
+ xfs_itrace_entry(ip);
if ((ip->i_d.di_mode == 0)) {
ASSERT(!xfs_iflags_test(ip, XFS_IRECLAIMABLE));
- vn_mark_bad(vp);
+ make_bad_inode(inode);
}
if (inode->i_state & I_NEW)
unlock_new_inode(inode);
if (lock_flags)
xfs_iunlock(ip, lock_flags);
- VN_RELE(vp);
+ IRELE(ip);
}
void
xfs_ireclaim(xfs_inode_t *ip)
{
- bhv_vnode_t *vp;
-
/*
* Remove from old hash list and mount list.
*/
/*
* Pull our behavior descriptor from the vnode chain.
*/
- vp = XFS_ITOV_NULL(ip);
- if (vp) {
- vn_to_inode(vp)->i_private = NULL;
+ if (ip->i_vnode) {
+ ip->i_vnode->i_private = NULL;
ip->i_vnode = NULL;
}
xfs_put_perag(mp, pag);
/*
- * Remove from cluster list
- */
- mp = ip->i_mount;
- spin_lock(&ip->i_cluster->icl_lock);
- hlist_del(&ip->i_cnode);
- spin_unlock(&ip->i_cluster->icl_lock);
-
- /* was last inode in cluster? */
- if (hlist_empty(&ip->i_cluster->icl_inodes))
- kmem_zone_free(xfs_icluster_zone, ip->i_cluster);
-
- /*
* Remove from mount's inode list.
*/
XFS_MOUNT_ILOCK(mp);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff