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authorDavid Chinner <david@fromorbit.com>2008-10-30 17:37:26 +1100
committerLachlan McIlroy <lachlan@sgi.com>2008-10-30 17:37:26 +1100
commit396beb85311689e38634926058d9a3bb0576ca8a (patch)
tree58b3e6904d9618930fe6c0f8abba52aaeea00130
parent1dc3318ae1c1cc11f9fb8279a806de448e2b90e8 (diff)
[XFS] mark inodes for reclaim via a tag in the inode radix tree
Prepare for removing the deleted inode list by marking inodes for reclaim in the inode radix trees so that we can use the radix trees to find reclaimable inodes. SGI-PV: 988142 SGI-Modid: xfs-linux-melb:xfs-kern:32331a Signed-off-by: David Chinner <david@fromorbit.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org>
-rw-r--r--fs/xfs/linux-2.6/xfs_sync.c41
-rw-r--r--fs/xfs/linux-2.6/xfs_sync.h4
-rw-r--r--fs/xfs/xfs_ag.h5
-rw-r--r--fs/xfs/xfs_iget.c3
-rw-r--r--fs/xfs/xfs_vnodeops.c1
5 files changed, 54 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c
index 34413ceaea9..9e7f4dccab7 100644
--- a/fs/xfs/linux-2.6/xfs_sync.c
+++ b/fs/xfs/linux-2.6/xfs_sync.c
@@ -644,6 +644,47 @@ xfs_reclaim_inode(
return 0;
}
+void
+xfs_inode_set_reclaim_tag(
+ xfs_inode_t *ip)
+{
+ xfs_mount_t *mp = ip->i_mount;
+ xfs_perag_t *pag = xfs_get_perag(mp, ip->i_ino);
+
+ read_lock(&pag->pag_ici_lock);
+ spin_lock(&ip->i_flags_lock);
+ radix_tree_tag_set(&pag->pag_ici_root,
+ XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG);
+ spin_unlock(&ip->i_flags_lock);
+ read_unlock(&pag->pag_ici_lock);
+ xfs_put_perag(mp, pag);
+}
+
+void
+__xfs_inode_clear_reclaim_tag(
+ xfs_mount_t *mp,
+ xfs_perag_t *pag,
+ xfs_inode_t *ip)
+{
+ radix_tree_tag_clear(&pag->pag_ici_root,
+ XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG);
+}
+
+void
+xfs_inode_clear_reclaim_tag(
+ xfs_inode_t *ip)
+{
+ xfs_mount_t *mp = ip->i_mount;
+ xfs_perag_t *pag = xfs_get_perag(mp, ip->i_ino);
+
+ read_lock(&pag->pag_ici_lock);
+ spin_lock(&ip->i_flags_lock);
+ __xfs_inode_clear_reclaim_tag(mp, pag, ip);
+ spin_unlock(&ip->i_flags_lock);
+ read_unlock(&pag->pag_ici_lock);
+ xfs_put_perag(mp, pag);
+}
+
int
xfs_reclaim_inodes(
xfs_mount_t *mp,
diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h
index c1bcd500509..5f6de1efe1f 100644
--- a/fs/xfs/linux-2.6/xfs_sync.h
+++ b/fs/xfs/linux-2.6/xfs_sync.h
@@ -48,4 +48,8 @@ void xfs_flush_device(struct xfs_inode *ip);
int xfs_reclaim_inode(struct xfs_inode *ip, int locked, int sync_mode);
int xfs_reclaim_inodes(struct xfs_mount *mp, int noblock, int mode);
+void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
+void xfs_inode_clear_reclaim_tag(struct xfs_inode *ip);
+void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag,
+ struct xfs_inode *ip);
#endif
diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h
index 729ee3eb39a..2bfd8632914 100644
--- a/fs/xfs/xfs_ag.h
+++ b/fs/xfs/xfs_ag.h
@@ -204,6 +204,11 @@ typedef struct xfs_perag
#endif
} xfs_perag_t;
+/*
+ * tags for inode radix tree
+ */
+#define XFS_ICI_RECLAIM_TAG 0 /* inode is to be reclaimed */
+
#define XFS_AG_MAXLEVELS(mp) ((mp)->m_ag_maxlevels)
#define XFS_MIN_FREELIST_RAW(bl,cl,mp) \
(MIN(bl + 1, XFS_AG_MAXLEVELS(mp)) + MIN(cl + 1, XFS_AG_MAXLEVELS(mp)))
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index c4414e8bce8..a0387f14c20 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -91,6 +91,9 @@ xfs_iget_cache_hit(
}
xfs_iflags_set(ip, XFS_INEW);
xfs_iflags_clear(ip, XFS_IRECLAIMABLE);
+
+ /* clear the radix tree reclaim flag as well. */
+ __xfs_inode_clear_reclaim_tag(mp, pag, ip);
read_unlock(&pag->pag_ici_lock);
XFS_MOUNT_ILOCK(mp);
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 07945634923..f89a73eb016 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -2845,6 +2845,7 @@ xfs_reclaim(
spin_unlock(&ip->i_flags_lock);
list_add_tail(&ip->i_reclaim, &mp->m_del_inodes);
XFS_MOUNT_IUNLOCK(mp);
+ xfs_inode_set_reclaim_tag(ip);
}
return 0;
}