[XFS] remove unessecary vnode flags

SGI-PV: 934766
SGI-Modid: xfs-linux:xfs-kern:196852a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>

3 files changed, 1 insertions, 73 deletions

diff --git a/fs/xfs/linux-2.6/xfs_vnode.c b/fs/xfs/linux-2.6/xfs_vnode.c
index ad16af38e965..654da98de2a5 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.c
+++ b/fs/xfs/linux-2.6/xfs_vnode.c
@@ -78,10 +78,6 @@ vn_reclaim(
         }
         ASSERT(vp->v_fbhv == NULL);
 
-        VN_LOCK(vp);
-        vp->v_flag &= (VRECLM|VWAIT);
-        VN_UNLOCK(vp, 0);
-
         vp->v_fbhv = NULL;
 
 #ifdef XFS_VNODE_TRACE
@@ -92,31 +88,6 @@ vn_reclaim(
         return 0;
 }
 
-STATIC void
-vn_wakeup(
-        struct vnode    *vp)
-{
-        VN_LOCK(vp);
-        if (vp->v_flag & VWAIT)
-                sv_broadcast(vptosync(vp));
-        vp->v_flag &= ~(VRECLM|VWAIT|VMODIFIED);
-        VN_UNLOCK(vp, 0);
-}
-
-int
-vn_wait(
-        struct vnode    *vp)
-{
-        VN_LOCK(vp);
-        if (vp->v_flag & (VINACT | VRECLM)) {
-                vp->v_flag |= VWAIT;
-                sv_wait(vptosync(vp), PINOD, &vp->v_lock, 0);
-                return 1;
-        }
-        VN_UNLOCK(vp, 0);
-        return 0;
-}
-
 struct vnode *
 vn_initialize(
         struct inode    *inode)
@@ -221,7 +192,6 @@ vn_purge(
 {
         vn_trace_entry(vp, "vn_purge", (inst_t *)__return_address);
 
-again:
         /*
          * Check whether vp has already been reclaimed since our caller
          * sampled its version while holding a filesystem cache lock that
@@ -234,19 +204,6 @@ again:
         }
 
         /*
-         * If vp is being reclaimed or inactivated, wait until it is inert,
-         * then proceed.  Can't assume that vnode is actually reclaimed
-         * just because the reclaimed flag is asserted -- a vn_alloc
-         * reclaim can fail.
-         */
-        if (vp->v_flag & (VINACT | VRECLM)) {
-                ASSERT(vn_count(vp) == 0);
-                vp->v_flag |= VWAIT;
-                sv_wait(vptosync(vp), PINOD, &vp->v_lock, 0);
-                goto again;
-        }
-
-        /*
          * Another process could have raced in and gotten this vnode...
          */
         if (vn_count(vp) > 0) {
@@ -255,7 +212,6 @@ again:
         }
 
         XFS_STATS_DEC(vn_active);
-        vp->v_flag |= VRECLM;
         VN_UNLOCK(vp, 0);
 
         /*
@@ -266,11 +222,6 @@ again:
          */
         if (vn_reclaim(vp) != 0)
                 panic("vn_purge: cannot reclaim");
-
-        /*
-         * Wakeup anyone waiting for vp to be reclaimed.
-         */
-        vn_wakeup(vp);
 }
 
 /*
@@ -315,11 +266,6 @@ vn_rele(
          * return.
          */
         if (!vcnt) {
-                /*
-                 * As soon as we turn this on, noone can find us in vn_get
-                 * until we turn off VINACT or VRECLM
-                 */
-                vp->v_flag |= VINACT;
                 VN_UNLOCK(vp, 0);
 
                 /*
@@ -330,10 +276,7 @@ vn_rele(
                         VOP_INACTIVE(vp, NULL, cache);
 
                 VN_LOCK(vp);
-                if (vp->v_flag & VWAIT)
-                        sv_broadcast(vptosync(vp));
-
-                vp->v_flag &= ~(VINACT|VWAIT|VRECLM|VMODIFIED);
+                vp->v_flag &= ~VMODIFIED;
         }
 
         VN_UNLOCK(vp, 0);
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index bc9ed722ba1e..4a74569a5690 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -135,9 +135,6 @@ typedef enum {
 /*
  * Vnode flags.
  */
-#define VINACT                 0x1      /* vnode is being inactivated   */
-#define VRECLM                 0x2      /* vnode is being reclaimed     */
-#define VWAIT                  0x4      /* waiting for VINACT/VRECLM to end */
 #define VMODIFIED              0x8      /* XFS inode state possibly differs */
                                         /* to the Linux inode state.    */
 
@@ -489,7 +486,6 @@ typedef struct vattr {
         (VN_ISREG(vp) && ((mode) & (VSGID|(VEXEC>>3))) == VSGID)
 
 extern void     vn_init(void);
-extern int      vn_wait(struct vnode *);
 extern vnode_t  *vn_initialize(struct inode *);
 
 /*
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index d3da00045f26..fa796910f3aa 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -505,7 +505,6 @@ xfs_iget(
         vnode_t         *vp = NULL;
         int             error;
 
-retry:
         XFS_STATS_INC(xs_ig_attempts);
 
         if ((inode = iget_locked(XFS_MTOVFS(mp)->vfs_super, ino))) {
@@ -526,16 +525,6 @@ inode_allocate:
                                 iput(inode);
                         }
                 } else {
-                        /* These are true if the inode is in inactive or
-                         * reclaim. The linux inode is about to go away,
-                         * wait for that path to finish, and try again.
-                         */
-                        if (vp->v_flag & (VINACT | VRECLM)) {
-                                vn_wait(vp);
-                                iput(inode);
-                                goto retry;
-                        }
-
                         if (is_bad_inode(inode)) {
                                 iput(inode);
                                 return EIO;