[XFS] kill deleted inodes list
Now that the deleted inodes list is unused, kill it. This also removes the
i_reclaim list head from the xfs_inode, shrinking it by two pointers.
SGI-PV: 988142
SGI-Modid: xfs-linux-melb:xfs-kern:32334a
Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 1d67d7f..206a949 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -913,7 +913,6 @@
atomic_set(&ip->i_iocount, 0);
atomic_set(&ip->i_pincount, 0);
spin_lock_init(&ip->i_flags_lock);
- INIT_LIST_HEAD(&ip->i_reclaim);
init_waitqueue_head(&ip->i_ipin_wait);
/*
* Because we want to use a counting completion, complete
@@ -1546,7 +1545,6 @@
goto out_free_args;
spin_lock_init(&mp->m_sb_lock);
- mutex_init(&mp->m_ilock);
mutex_init(&mp->m_growlock);
atomic_set(&mp->m_active_trans, 0);
INIT_LIST_HEAD(&mp->m_sync_list);
diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c
index bbb40e2..22006b5 100644
--- a/fs/xfs/linux-2.6/xfs_sync.c
+++ b/fs/xfs/linux-2.6/xfs_sync.c
@@ -644,6 +644,11 @@
return 0;
}
+/*
+ * We set the inode flag atomically with the radix tree tag.
+ * Once we get tag lookups on the radix tree, this inode flag
+ * can go away.
+ */
void
xfs_inode_set_reclaim_tag(
xfs_inode_t *ip)
@@ -655,6 +660,7 @@
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);
+ __xfs_iflags_set(ip, XFS_IRECLAIMABLE);
spin_unlock(&ip->i_flags_lock);
read_unlock(&pag->pag_ici_lock);
xfs_put_perag(mp, pag);
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index a0387f1..8001338 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -95,10 +95,6 @@
/* 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);
- list_del_init(&ip->i_reclaim);
- XFS_MOUNT_IUNLOCK(mp);
} else if (!igrab(VFS_I(ip))) {
/* If the VFS inode is being torn down, pause and try again. */
error = EAGAIN;
@@ -419,11 +415,7 @@
write_unlock(&pag->pag_ici_lock);
xfs_put_perag(mp, pag);
- /* Deal with the deleted inodes list */
- XFS_MOUNT_ILOCK(mp);
- list_del_init(&ip->i_reclaim);
mp->m_ireclaims++;
- XFS_MOUNT_IUNLOCK(mp);
}
/*
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 99d9118..4eb629f 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -811,7 +811,7 @@
ASSERT(atomic_read(&ip->i_iocount) == 0);
ASSERT(atomic_read(&ip->i_pincount) == 0);
ASSERT(!spin_is_locked(&ip->i_flags_lock));
- ASSERT(list_empty(&ip->i_reclaim));
+ ASSERT(completion_done(&ip->i_flush));
/*
* initialise the VFS inode here to get failures
@@ -2729,7 +2729,7 @@
ASSERT(atomic_read(&ip->i_iocount) == 0);
ASSERT(atomic_read(&ip->i_pincount) == 0);
ASSERT(!spin_is_locked(&ip->i_flags_lock));
- ASSERT(list_empty(&ip->i_reclaim));
+ ASSERT(completion_done(&ip->i_flush));
kmem_zone_free(xfs_inode_zone, ip);
}
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 64e50ff..a5aeb9c 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -235,7 +235,6 @@
typedef struct xfs_inode {
/* Inode linking and identification information. */
struct xfs_mount *i_mount; /* fs mount struct ptr */
- struct list_head i_reclaim; /* reclaim list */
struct xfs_dquot *i_udquot; /* user dquot */
struct xfs_dquot *i_gdquot; /* group dquot */
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 3704bae..177976d 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -580,7 +580,6 @@
mp->m_blockmask = sbp->sb_blocksize - 1;
mp->m_blockwsize = sbp->sb_blocksize >> XFS_WORDLOG;
mp->m_blockwmask = mp->m_blockwsize - 1;
- INIT_LIST_HEAD(&mp->m_del_inodes);
/*
* Setup for attributes, in case they get created.
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 4e62802..67cf0b2 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -248,8 +248,6 @@
xfs_agnumber_t m_agirotor; /* last ag dir inode alloced */
spinlock_t m_agirotor_lock;/* .. and lock protecting it */
xfs_agnumber_t m_maxagi; /* highest inode alloc group */
- struct list_head m_del_inodes; /* inodes to reclaim */
- mutex_t m_ilock; /* inode list mutex */
uint m_ireclaims; /* count of calls to reclaim*/
uint m_readio_log; /* min read size log bytes */
uint m_readio_blocks; /* min read size blocks */
@@ -312,8 +310,7 @@
int m_attr_magicpct;/* 37% of the blocksize */
int m_dir_magicpct; /* 37% of the dir blocksize */
__uint8_t m_mk_sharedro; /* mark shared ro on unmount */
- __uint8_t m_inode_quiesce;/* call quiesce on new inodes.
- field governed by m_ilock */
+ __uint8_t m_inode_quiesce;/* call quiesce on new inodes. */
__uint8_t m_sectbb_log; /* sectlog - BBSHIFT */
const struct xfs_nameops *m_dirnameops; /* vector of dir name ops */
int m_dirblksize; /* directory block sz--bytes */
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index f89a73e..1d15a32 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -2835,18 +2835,8 @@
xfs_iflock(ip);
xfs_iflags_set(ip, XFS_IRECLAIMABLE);
return xfs_reclaim_inode(ip, 1, XFS_IFLUSH_DELWRI_ELSE_SYNC);
- } else {
- xfs_mount_t *mp = ip->i_mount;
-
- /* Protect sync and unpin from us */
- XFS_MOUNT_ILOCK(mp);
- spin_lock(&ip->i_flags_lock);
- __xfs_iflags_set(ip, XFS_IRECLAIMABLE);
- 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);
}
+ xfs_inode_set_reclaim_tag(ip);
return 0;
}