xfs: active inodes stat is broken
vn_active only ever gets decremented, so it has a very large negative number. Make it track the inode count we currently have allocated properly so we can easily track the size of the inode cache via tools like PCP. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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@ -65,6 +65,7 @@ xfs_inode_alloc(
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return NULL;
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}
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XFS_STATS_INC(vn_active);
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ASSERT(atomic_read(&ip->i_pincount) == 0);
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ASSERT(!spin_is_locked(&ip->i_flags_lock));
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ASSERT(!xfs_isiflocked(ip));
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@ -130,6 +131,7 @@ xfs_inode_free(
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/* asserts to verify all state is correct here */
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ASSERT(atomic_read(&ip->i_pincount) == 0);
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ASSERT(!xfs_isiflocked(ip));
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XFS_STATS_DEC(vn_active);
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call_rcu(&VFS_I(ip)->i_rcu, xfs_inode_free_callback);
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}
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@ -1008,7 +1008,6 @@ xfs_fs_evict_inode(
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clear_inode(inode);
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XFS_STATS_INC(vn_rele);
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XFS_STATS_INC(vn_remove);
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XFS_STATS_DEC(vn_active);
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xfs_inactive(ip);
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}
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